Controlling emotions in the crypto space is very difficult, especially if someone is holding all their life savings in Bitcoin, then how to control their emotions is a very difficult challenge. Many people, in the hope of making extra profits, hold onto crypto instead of keeping their money in the bank. In their case, it is quite difficult to control their emotions once the market collapses.  There are also many people who invest in Bitcoin, inspired by someone in some way or another. If they suffer losses due to unexpected reasons, it is very difficult for them to control their emotions.

Yeah, many out there can't bear the thought of any loss, really - it's all about green for them, and no red at all.
Even when you hodl - red is normal, because the market doesn't only go up, it fluctuates, like the ocean.

Before we start know ourself and how we feel about uncertainty. If  we get emotional easily it might not be good idea. To do well only invest money we can afford to lose otherwise it will cause problems in future. Also learn to control our emotions it will help us to make good decisions or secure us from bad decisions. One more thing which is important is money management.
We should keep in mind that experience and learning are important. When we feel emotional we should take deep breath and think carefully. With time and practice we will get better at handling ups and downs of market.

Who is short term investors they visit the market and tracked there holding coin price frequently because there intention is to sell there holding when they will get 10-20% of profit but when there coin price drop more then 10% they get panic because it is drop 10% which was there profit intentions.

Always a long term trader win on crypto investment. because they always invest there Idle money which is not required for their daily expenses.  And they have no problem if they lose. Because they are not too worried about their holdings.  So it is very easy to control their emotions. But short time investors and day traders can never control their emotions.

If you are afraid of losing money, don't invest in crypto but in stable assets like gold.
Investing in crypto can end in losses due to unpredictable price fluctuations.
Basically, it is very easy to know if you have the intention to learn it, but it is difficult to apply it when you have acted.
CZ is a rich person who is famous for something that is familiar to many people so that what he says feels all true.

Controlling your emotions might not make you successful all the time, but it can surely save you from excessive losses sometimes because people often panic and sell their positions or assets when the market is dropping even if the drop is minor but they sell early and lose money, but after a while, the market starts going back up and then they realize that they've made a mistake and that they should have stayed patient.

Having enough knowledge about the market is important for this reason because when you have knowledge, you know that this is very normal for such a market to have small corrections every now and then, and it eventually recovers and nobody is losing money except those who panic and sell at a loss.

If you are patient enough to endure through the small dips and corrections and don't get worried as soon as you see a red candle, you will most likely have less losses in such a financial market which is extremely volatile.

For beginners in crypto investment I often advice them to start with the amount they can comfortably or afford to lose because of the emotional trauma attached in holding Bitcoin (I don't always check how the market is doing and that has helped me keep my emotions together) CZ's advice on how to invest is highly appreciated, no matter that how confident we are in Bitcoin it's essential to put in what we can afford to lose just to be on the safe side

It's about persistence and consistency, rather than about the amount of funds.
Surely, it's possible to invest more - but only if you do have your analysis done right and patience set up.

Yeah you are right, it is better one invest with money he or she can afford to lose that is using only discretionary income to invest, we all know what discretionary income is if anyone don't discretionary income are income or money that is remaining after deduction of taxes, mortgage, and basic living costs from your monthly or weekly salary the remaining money lift after settling all these is your discretionary income, now if you are using only your Discretionary income to invest it won't affect you it will keep your investment safe but if you are not using only your Discretionary income you will always be tempted to dip hands into your investment to settle some things, some set of people because they want to rush and build up there investment they start investing aggressively and even using money they are suppose to use to pay bills to invest which will later lead them to having financial issues and in other to settle that financial issues they then dip hands into there investment, so if you are going into investment in the crypto space you need to invest using only your Discretionary income or money you can afford to lose.