/ic/ - Artwork/Critique

So I've got a question, I boight some Loomis, and his lessons have been helpful, but at a certain point there's a hump where it's hard to progress past. How did ya'll get past lessons that you didn't want to do, or it's stuff you already know how to do, just a different method. Cuz I don't want to move on to more advanced stuff until I get through them.