where there is nature of different people is concerned, one who can't be patient and one who panic easily, it is upto the nature of financial market not everyone gains and not everyone lose

Not everyone will be a winner in very race,same is applied to every investment.Some persons will sell their bitcoin due to panic,finical constrains,these are classify as weak hands.

some people might lose some might win, if you bought bitcoins at a low price then sold it when it pumped then maybe you've gain profit..  that's one strategy that other bitcoin holders do

I don't think so. It's a usual market with some small differencies so it means that somebody must lose to give you opportunity to win.
It can be when btc shows 300-400% annually growth.
then it does not matter for what price each market participant bought it

investing has risks including loss and profit. not necessarily at the same time all investors get profit or reverse losses. it all depends on how to manage each individual's investment. what if you manage well then its lucky will. and what if you can not manage you will get a loss. so manage your stock well. for profit.

I don't think that it is possible, lets say there are people who have invested in Bitcoin at the same time, of course different investors have their own goal and target profit where they want to cash out their Bitcoins, you should know that there are short and long term investors which means that short term investors will probably sell with a fix percentage of gains while long term investors are just holding their Bitcoins losing their money while others are selling. In my opinion, short term investors have the advantage to buy on dips and sell on highs. Price increase doesn't mean that everyone is making profit, you should first cash it out before you can say that you gain a profit and when the price increases it doesn't mean that everyone are selling, so there will always be some investors that will lose money especially those who've just entered the market at a higher price.

Every investors experience to lose their money. It is not all the time they earn and just have profit. There are times that the market goes down and their investment losses. That's is the risk you have to take when you started this business, well, every business have a risk. If you're a smart one, you will think of alternative ways to not lose your money.

why people lose money at first they dont know the crypto market properly or they just follow the social media scam fud news trends. if you are a long term investor then you dont need to worry for that because when the price down some people keep panic  and sell the coin at a loss its another reason for a lose.

As far the concern of profit from cryptocurrency, the price is derived from supply and demand. If all users start selling bitcoin at same time, the price migh have to go down and the users who sells lately will have either low prpfits or loss.
So you need to sell on right time in order to obtain profit because price is volatile