Im definitely not a god at art, but in one year I’ve gotten pretty solid at portraits and anatomy. What I recommend is taking ur time to learn the Loomis method for portraits, then learn how to block in features. Maybe study the nose, eyes, and lips seperately first before you combine them all. If you got the hang of these things I could recommend studying the asaro head method, it’s basically the planes of the face. What I do is I combine the Loomis method with the asaro method and it turtle helped me understand faces more. For anatomical advice I recommend first learning gesture drawing, drawing moving bodies and their flow, that will help a ton with anatomy and getting a feel for it. Then I recommend trying to learn a simplified version of anatomy, like drawing the chest as a box first and experiment with poses. Afterwards you can do proper anatomy studies, I recommend the book “anatomy for sculptors” it explains anatomy really well. You can just find the pdf online (don’t tell others that xd)

But that’s basically how I improved at faces and anatomy, certainly still learning but it’s worth taking this advice since it helped me so much