everyone has said what needs to be said, but this post is a few days old now so i'm going to say it again, in case you went back to your normal self.
just pick something, anything, and not major (as to discourage yourself), break it down to small parts and each part into a set of tasks. for that you can use [https://workflowy.com], i like it a lot. just tackle them. DO NOT stop when you're stuck. bulldoze through it, then stop at the middle of a printf or something (again so you will jump back on it because you know how to pick up where you left off).
just pick an idea that you love, and go with it. and never forget who you are.
just pick something, anything, and not major (as to discourage yourself), break it down to small parts and each part into a set of tasks. for that you can use [https://workflowy.com], i like it a lot. just tackle them. DO NOT stop when you're stuck. bulldoze through it, then stop at the middle of a printf or something (again so you will jump back on it because you know how to pick up where you left off).
just pick an idea that you love, and go with it. and never forget who you are.
take care, bud. i promise, you'll be just fine.