as long as it takes   if it means so much youl keep coming back   eventually youl get there   same for me and sketching   my sketches are pretty good but many aspects need alot of work and shading is just the bubonic plague never go anywhere near it   other aspects are improving and eventually ill hopefully bottleneck and or improve that much i have more creativity  to desire improve shading and ultimately more stimulating a task and build momentum   break the mould find your own meaning whatever it is