I find that my problem is my perfectionism. I know about the minimum viable product way of thinking, but I start wanting to do the things I do at work, namely spend hours upon hours thinking of requirements and how it will be laid out, etc. I guess I have to retrain myself to think in a more iterative, just-get-something-up-and-running way of thinking.

People have told me that when it comes to webapps, it's all about getting a minimum viable product out there, but when it comes to mobile apps you really need to polish because early bad reviews will haunt your product "forever".