People can tell you or advise you of a million different things. You won’t find proper information thats based on opinion or based on an individualistic experience. Go read and take notes. Absorb the information not just from one source but from many.
At the end of the day you do whatever the fuck you want, its up to you whether you want to go into something knowledgeable and succeed, or go into something half assed and mess your shit up.