do it, cause its free The best advice i got is to do the famous "donut"-tutorial on youtube. There's a guy that makes the tutorial new for every new version that comes out, so you're up to date on that as well. After that just test it yourself or do tutorials on things you want to improve/do
Polyjford and Ian Hubert have some awesome tutorials to learn from and join some of the big blender discords. If you don't know how to do something there's probably a tutorial or a stackoverflow post on how to do it and do a bunch of smaller projects before you try anything of scale.