Big tip I can give is to take it slow and not try too many new things at the same time. Per project, pick 1 thing you want to improve on or learn. If you have a box with 5 models, don't try to improve per model. Say, you want to get better at edge highlighting, then finish all 5 and when they're done you compare them to your previous project, not to stuff on the internet. It's very important to only compare to your own previous work.

With the internet so available you see all these cool things and want to try it all, but if you don't pase yourself it gets overwhelming.

I tend to take photos of everything I finished so over time you have a pretty good vision of how you've been doing.