As with most professions, nothing can replace experience. Senior engineers, laborers, scientists, doctors, etc. all become seniors through years of learning, and arguably more importantly, failing.
Rookies will try “method A” until it fails, then learn “method B”, then try A and B until a C is needed. Rinse and repeat. Being self-critical and observant will help.
In the short term, “in 6 months”: Practice. Every. Single. Day. If you need to break for day, make sure you come back the next. There are thousands of educational tools out there: Online lectures, free tests, public forums, problem sets (i.e. leetcode) etc. Don’t skip the fundamentals, even if it seems boring. It will mean less memorization, and you’ll understand more complex topics easier.
If you plan and commit to it, you still won’t be a “pro”, but you’ll likely have a chance in an interview, where you might land a job. There, over years, you can hone your skills.
I played the demo for a few hours. Might be a solo dev, but his experience is definitely noticeable. Game looks great, albeit unoptimized. Progression is simple and fair. Artwork is incredible for a solo dev. Combat is decent, and unexpectedly satisfying.
Someone else mentioned the excessive blood explosion - it’s the best feeling when you land one of those shots from across a field.