You need to work on focusing so that you can take breaks and go right back to work. There are many ways to improve that from simply 'do it' to using a certain playlist. I started with the playlist and have now use a combination of that with 'do it' discipline.

I can't find the quote (Shakespeare maybe?), but paraphrasing it says the worst time in ones life is the moment between deciding to do something and doing something. The goal is to get rid of that moment in between.