I would suggest taking an art class somewhere. In my opinion I think the structure of a class can help someone with where to start and also the feedback from an instructor or classmates that can be right next to you is really beneficial. If the possibility of taking a course in person somewhere isn’t feasible don’t worry, there are a lot of other places that can help you. drawabox.com is nice to learn perspective and here on this site you can find a lot of anatomy lessons of course from Proko! there is a thread somewhere on the site with some really good books as well, I want to say it’s pinned to the top of one of the sections. One thing for sure though is to draw, draw, draw. Jump into it. Go watch the anatomy proko videos and do the assignments. Draw from life! Do perspective assignments. Design a room in 2 point perspective. Design boxes in all different directions and perspectives. Post here for feedback or find other likeminded art people around you.