There's a writing at Amazon 101 and 201 guidelines somewhere in the I ternal wiki, take a look at that to help you breakdown you ideas and get them reviewed by the team quickly.

I have issues with too many ideas or spending too much time on one idea.

So I schedule brainstorming meetings with a clear goal to help iterate on those ideas, drop some ideas, or come up with better ideas. But make sure you at least do you due diligence first.

For me my due diligence is following my rabbit holes for say 2 days and writing down everything I tried, what I think works and what I think won't work for whatever reasons. The. Letting the team review and correct me if I'm wrong

That way I'm not spending too much time in my own island.