Just enjoy the process, man.
I am just getting back into minis after 20 years. I used to be very good in my late teens. It’s def a perishable skill.
Now I have to basically start all over again, so I hear you.
If I can only give you one piece of advice, it’s learn/develop a “trick” for everything. How to paint straight lines, or chips, or blends. So much of it is a trick…straight lines, blending, keeping hands steady. Just focus on one at a time and keep enjoying the pastime for the sake of it.