@williamatics
From my experience what gave me a huge boost in my sculpting skills was SculptJanuary: one sculpt a day for a whole month. Be aware that it is very demanding and I ended up the month with a sleeping cycle quite messed up.
If you cannot wait until January, I would suggest a similar approach: practice practice practice. Sculpting is a very forgiving method where you don’t have to focus too much on the cleanness of the mesh and it’s very simple to start a project. What you could do is get the list of all the imposed topics of the previous contest and do them (or one per week, depending on your own tolerance to workload). The most important if you want to focus on improving skills is how you sculpt and not what you sculpt, hence the benefit of imposed topics, so that you build yourself a good muscle memory.
Course wise, on CG cookie there’s the creature modelling course that is quite nice, as well as the sci-fi weapon and of course my personal favorite that I keep mentioning over and over, the sci-fi helmet. Otherwise what I personally do is look at timelapses and try to breakdown the different steps. It’s not really focusing on the keystrokes or getting the very a same brushes but more the idea behind it, i.e the why “Here I need to flatten the surface, here I need to sharpen the edges”).
Good luck and have fun, I found sculpting is very relaxing and helpful for boosting my creativity!
