as both are hobbies, so be it. eventually the ambition will return, but for now, relax and let the 'want' to do it return.
if you do want to get motivated sooner, then just 'putter', i find i get more done whithout inentions of accomplishing anything sometimes, i sit down and just mess with stuff and before i know it, i have something built [be it an engine or interior or whatever].