Someone posted the same type of problem and I replied I was having the same feelings. Well, Klue posted about her problems, but then shared some things she has made. It made me think about others that are having physical problems and mine didn't compare. So I thought I needed something to REALLY challenging. Well 1/4" is not my best friend(lol), so I decided to do Klue's optical illusion. I've made it and now am on to another project. I plan on posting it very soon.
So my advice is pick something out of your comfort zone and go for it.