Your studies are amazing! I am from India, and was in a similar situation 3 years ago when I was 21. I would like to pass on some advice that helped me, I met one mentor for a very short period, but he helped me with invaluable advice. He said- 1. no matter what, your hardwork won't go to waste. You just need to be honest about your criticism towards yourself, so if you're overdoing it, do less. If you're underdoing it, be more honest. 2. After you get good at fundamentals, don't let anyone tell you how to do your art. It's your style, be proud of it. So, back then I was 21 and had no social connections, etc. I kept studying, I took a break once in a while too to destress. It's very important to disconnect from your pursuit to basically get a better overall look of where you stand. Eventually, I found Proko, a few other discord art communities, where I was able to work at least 5-6 hours a day and have fun while doing it, since others also join in. So try to have fun, trust the process. Do not compare yourself to big superhero professional artists, I have less than 2 years of work experience and I'm not super happy with my fundamentals still, it's a constant process. It never ends and there lies the fun! It's completely different when you're studying and when you get professional work. There are so many new factors, time saving methods, etc. involved, but most importantly- direction. Art directors, managers, executives guide you into their specific vision. So there's a lot of collaboration that happens I'd assume for others too. Hence it's different from one person doing concentrated studies, I feel like studying without feedback was more stressful for me. If you're unable to get results from head studies, try something new you always wanted to. Try experimenting, and make a couple of serious pieces out of those. For head studies, I think proportions help. Please look up traditional methods of measurements, I love the 2 pencil technique where you measure angles as well as size. It really helps with faces especially, since most of it is just placing the features right. Try larger canvas sizes, make mistakes, and then redo it, but after analyzing your mistakes. Take notes right on your canvas so you remember which mistakes you need to fix next time. For lines, a lot of artists tend to refine their lineart with multiple passes. So if it's wobbly at first with your sketch, that's okay, but try for 2 more refined layers. Look at how other people's lineart works, if you're working digitally - I can guarantee that a professional artist already has their preferred sensitivity setting, their preferred brush settings. Easiest way to try and mimic this is to trace over an artist's drawings, adjust your pen settings, see which gives the closest and most natural result. Tracing is okay when you are studying, but do not rely on it solely, it will take away critical thinking ability. In this case, lineart tracing helps to construct new brushes! I hope you find this encouraging, it is very nice seeing someone from a very similar circumstance to mine, so I was a bit eager to respond here. Please keep working, share your work with others, look at how others are being critiqued. It is a constant process for all artists, I would love to see your work here again! :)

Maybe you are right I should do art for the passion not take some shortcut