Also don’t be afraid of being very specific about your medium. I did get into drawing somewhat but once I realised just how much work acquiring certain skills would’ve been, in particular around shading, I tossed all of that and focussed on sculpting where I don’t have to do work a GPU can do for me. I can bloody program the GPU to do projection and physically-accurate shading, could do that for a good decade back then, I’m not going to do it in my head.

So start up blender and give it a whirl. Only thing you need is a PC that’s not entirely ancient (though a beefy one is certainly nice) and a graphics tablet. (Don’t sculpt with a mouse. I mean you can give it a spin to get a conceptual impression but the results will never be good due to lack of control and your index finger is going to die – if you don’t want to buy a tablet right now try hard- and subsurface modelling).

Youtube is your friend, start here if you never used blender (and enable right-click select, last video, to instantly be a pro) because blender on first startup indeed looks like this, then do the obligatory owl and by that time youtube should know what you’re doing and recommend stuff.