Just a small hint, if you care to take it. You don't have to reinvent the wheel. Start small. Small victories will build to large ones, and everyone can just use a win sometimes.
I had, had the WORST time completing a game project. I had gotten into the headspace where I thought I couldn't finish it (and, as for a large, wholly original project, maybe I can't).
I just decided to make a small match three game with minimal assets and minimal menu. Looks terrible. Unpublishable. But I finished it! I know how to plan it out, I know the warts that are involved, and I know how to get it on the platform I want should I want to publish.
There's something to be said for finishing an MVP of even a minimal project.
Anytime I’m talking with someone at a meet-up who wants to learn gamedev, I advise them to make pong and add a new mechanic to it. If they can’t learn to do that, the odds of them making the game they envision is extremely low.
I’ve been in the industry for twelve years and have done the indie thing very successfully, and I still have low confidence when it comes to making a game that is any good. I keep waiting for it to get easier, but every time it does your ambitions increase to match.
My best (or possibly worst) advice is just finish 1 thing, and from there you can't go back to not finishing something. I used to flip projects every other month, now I go years on one thing and don't even want to change.
I say possibly worst advice because there have been times, and I'm currently in such a time, where I'm working on a fundamentally flawed idea but can't give it up in favour of something else. I need to finish it and finish it well, even if it feels undoable.
Eh it's not that hard, there's just a lot of aspects to work on so you have to work on it consistently. Maybe try a game jam sometime, like Ludum Dare and the sort.
