Oh, cool! Thanks on your input! I remember once I've tried to start something similar and also found it tough and quit. But I guess this is because I had an idea that I have to do something which I am not doing and struggling out of this idea more :)

Then maybe for me personally I would take first half of the day for this task when I am more fresh and relaxed and do it like a gym or yoga practice :) just a daily routine in sketching/growing new skill...