maybe this sounds stupid, but i always take a bath ore shower,and usually something pops in my head.relaxing is the key (this works with me maybe it could work for you.)

I am back to working and realized I just had to press on.

Apparently my dad goes through this with his interns. They overthink and analyze and can sometimes freeze because they think their code will never be great, yada yada. It's a common thing for him to struggle to get them to understand "The important thing is just to code, it can be the worst code in the world, it doesn't even have to work, just do it."

I've always been that way, so it's something I'll have to remember, in addition to much of the excellent advice above.

Relaxed concentration/focus seems to be the key to me. When my attention-span and focus is up I seem to flow through tracks better.

Relax and focus on the music. Its all about having fun