To be a good trader you need to do research and prepare yourself according to the advice of expert investors. You should initially choose the currency and buy a minimum amount to get a good idea of the market situation because when you have your own investment it will be easier to do your research and you will understand when you should invest and when you should withdraw.
Make sure you have the knowledge of trading before going into crypto trading, because that is what will be controlling
you to trade rightly to achieve what you want from trading. Watching some video on how to trade is a good choice, but if you can get a trade mentor, I guess you will catch up fast to improve because they will be monitoring you whenever you want to trade, and if the market is not good to trade your mentor will not allow you to trade at the moment.
No matter what, don't follow people advise without Carry out your personal research about the investment because there are some investment you will invest your money, it will not favour you the way you want because you follow people advise.