First of all, you have to know that you can't have everything. Life or your trading strategy will not become with %100 accuracy. But you can make "good decision" and then expect the results peacefully.
So what is the "good decision" in the crypto world?
Crypto world is not under our control. There are many inputs, news, thoughts, and actions. After these facts, "good decision" is that evaluating all criteria before the action. If I have more bitcoin than last week's balance, I can call that I am making good decisions.
1- Determine the options
There are many options at any time. Buying, selling, waiting, hodling are some of them. Please judge your own actions. Because crypto exchanges basically have only 2 options: buy or sell. But in the real world, we have more than 2 options.
2- Probability
Before your action, you have to look at your sources to calculate the probability. These can be news, indicators, groups, volumes etc. The most important thing about probability is that having many resources to calculate the probability. For example, you have to combine your thoughts about news, MACD, Ichimoku Cloud, RSİ, Volume, and Trend. If your sources mainly say that "It will go up", then you can but it.
3- Play it Again
Remember that good results will come with your trading stability. For that stability, you have to play knowing you will play again. So you can't trade your all money at one action. For example, If you have $100, you can trade $5 at one trade. At this point, discipline is the most important key to success.
After applying these rules, the result may not make you happy sometimes. That doesn't show that your decision was wrong. That shows that everything is not under your control but you did right.