All are good, do what is best for you, the one you think it will be easy for you. Just that investing is a longterm business which if you are not patient you won't be able to cope with. All are good which brings profits when you do them well.
True, because everyone has different skills. If we have the talent to trade, then trade. Learning to make a profit through crypto investment is a must, but don't let us force something that we have not mastered, because it will harm ourselves.