Investment and trading belong to a very macro field and it requires a lot of learning and acumen. This is not a job that everyone can be good at, it depends on the personality of each person. For example, if I am someone who cannot sit still for too long while waiting for my order to reach the target, then I will not be able to match the trader. I can only analyze and invest short term in good alts and I think I will belong to the type of investor.
It is true that the more we do it, the more we learn, the better. But first, determine what your strengths or weaknesses are, then decide on a job.