Hey! I'm a relative newbie to model making, but do have a lot of experience in the creative arts.
Unlike other domains where the work ethic adages of old force us into submission, talk to artists and you will hear them say a few things: nothing is gained by forcing it, more to lose;
stepping away gives time for background mental processing to run its course;
there may be other things you need to learn first, on a simpler project that you don't care so much about.
I'm sure other folks will have much to say on this subject! We've all been there!