It is not so difficult but it is not easy either 
you must spend a lot of time to read, observe and understand nature of bitcoin. If you are serious to invest bitcoin you must do that, of course if you don't want to lose
When i see my friend engaging himself in cryptocurrency, i feel that it is very hard to understand but when i study crypto it is not really difficult, maybe at first we can feel that it is dangerous to invest in crypto but when we fully understand crypto it is better to invest in cryptocurrency. you must spend a lot of time to read, observe and understand nature of bitcoin. If you are serious to invest bitcoin you must do that, of course if you don't want to lose