Buy as much as you can, assuming you're holding for long term, If not then you might be at a higher risk of lossing all your invested money. Especially when you ran out of patience like when you experience the 2018 bear season which lasted for more than a year.
The most recommendable investment advice is to only buy what you can afford to lose. Same thing goes to trading and even gambling.

Inexperienced users can make a lot of mistakes when starting to work with cryptocurrency. For example, choose an exchange where it is risky to store funds or specify the wrong address when transferring digital assets. Each of these and many other mistakes can lead to a partial or complete loss of the invested funds.

1. First of all, it is important for a user starting to work with cryptocurrency to decide on their strategy. It depends on where the trader will store their assets. If he prefers to buy coins and forget about them for a long time, it is safer to keep them in a cold wallet. If the user wants to try trading digital assets, it is better to choose an exchange.
Both methods have their advantages and disadvantages. It is more convenient to keep assets on the exchange: they can be sold at any time, exchanged for other coins, or withdrawn into fiat money. This is especially true during sharp market fluctuations. If a rapid decline in the price of bitcoin begins, the coins stored on the exchange can be immediately exchanged for dollars or other currencies.
The middle gold can be hybrid wallets that work, for example, as applications on a smartphone. This is a more secure way to store funds than on the exchange, and at the same time, most of these wallets allow you to make purchase and sale transactions with popular cryptocurrencies.

2. After choosing a strategy, you should create a wallet for storing cryptocurrency: either download the application to your computer or smartphone or create an account on the exchange. You can choose both options. Experienced traders hold on to the trading platforms part of the assets that are needed for operations. The remaining funds are stored in OTC wallets.

3. There are two main ways to buy cryptocurrency. The first is directly on the exchange if you have created an account on it. Many large trading platforms now allow you to top up your balance directly from your card or through a payment system. For this, a commission is taken, usually in the amount of 3-5%.


And in conclusion, I can say that it is extremely important to choose the right strategy and stick to it.

point 6 is very dangerous if owned by beginners. if the market goes into a downturn they tend to get emotional and sell at the lower end in panic, causing panic sells. This seems to provide lessons on how to deal with falling markets so as not to get caught up in losses

This is very common especially in periods like the one we are going through, when the price is not moving newbies are not interested in this market even when that is the best period to buy as the price is stable and does not move much.

But they do not care, they only want to buy when the price is going up or when there is a potential for the price to do so, which is fine but instead of using all the free time they had to learn how to trade they do nothing and then try to do everything at once when the price of bitcoin is moving wildly, and that is when they take bad decisions and they lose their money as a result of their ignorance.

When it comes to risk management or how much you should spend % of your total capital into your trades then its up to someone's decision and this will really vary from person to person because we do have different capacities when it comes to financial aspect and the level of risk management.

It doesn't matter if you use 5% or 10% or even more as long as you have seen some opportunities for you to take advantage of it. It's up to you. It's your money and it's your right whatever position you'd like to take.

Just make sure that you are aware of the risk of putting up much bigger, but if you are a type of trader who does not really like to get some peanuts, then if you are a type of trader who does not really like to get some peanuts, you can always opt for a bigger trading position.

I think the more appropriate for this one is to buy only what you can afford to lose because entering the market especially if you don't know what you were doing is a very risky thing to do.

I don't what's wrong in correction or fall ( for me at least ) because you don't even know how low is Bitcoin gonna be so better if you saw any opportunity to buy then don't hesitate to do it.

It is easier to say than to be done. Admit it that most of us, sometimes if the real thing came into our face you will never know what you are doing or what you are supposed to do but if you can manage your emotions then that would be better.
The only thing I can suggest is that don't stop acquiring knowledge and experience because this will be your primary guide. Always have a plan or strategies upon trading and don't oppose the trend. So far those are the only things I can give. You will learn everything you need to learn as you keep exploring the whole crypto market.

I prefer to buy only amounts to which my extra funds can afford and not "as much as I can" using most of my salary. one thing I learned in all my years in this industry  is that you must be patient, don't regret taking out funds when you need them, and most of all, do not put all your eggs in one basket(you have to pick good baskets though and not just any baskets you may find).

Or you do like most normal people do who put money aside in savings every month with their salary. Buy a fixed amount in dollars, no matter the price. Every time we reach a rally, the statistics prove,,, 90% of people who bought are in profit. No need to think and worry about dips and when to buy, just keep buying regularly.

Can someone tell me about BTC Dominance

Only invest what you can afford to lose.
Dont be greedy.
Dont do emotional buying.
HODL for sometimes and dont be in hurry
Always buy ALTCOINS after reading white papers