Need suggestions for books

Hey everyone I'm a 19M student I've been investing in the market for approx 3 years now. I've tried to learn about the markets from many sources and hence all of what I know is either half or disorganised, basically everything is a message and I really want to get it all together , I haven't read any books about investing or the markets even tho I've seen many people on this subject mention them frequently, are they really that helpful? I'll be starting over fresh from the beginning hence I want to know good sources where I should start from be it any books or other online source, please help me with this. Thank you