Thats the thing about trading though, you can't really learn it from reading books (except for some TA basics), you have to learn from experience. One way to get experience without suffering losses is just trading without any money, write down every trade you would make but don't actually do them, then after a while you can see and evaluate what your result would have been. Or you can also just start with a small amount, that'll feel more realistic and you won't have to worry about losses.
And then when you feel you're experienced enough you can start trading real money
You can learn the basics of trading with books and other resources but the only problem with trading is you are not always able to predict the impact of outside sources on the Bitcoin price. If a cryptocurrency exchange hit the news for being hacked of millions of dollars worth in Bitcoin you would probably expect this to have a bad effect on the price but depending on the circumstances it could actually have a positive and upward effect. And then when you feel you're experienced enough you can start trading real money
These things are hard to control and predict and that is why trading will always have an element of luck involved.