How to fight premature optimisation?

Howdy y'all.

I realised the other day that I had a tendency for premature optimistion. It manifests itself through a blank-page-like syndrome. I tend to spend hours figuring out how to architect my software, the best design patterns to use and so on. In my case it's not so much about speed but more about software design and architecture.

I was wondering if you guys experienced something similar and if so how you managed to overcome it 🙂

Cheers,