I wouldn't say that I'm the exact opposite of the OP because I do constantly add to my tools, but I tend to be about 1 year behind and prefer to wait until thin

I wouldn't say that I'm the exact opposite of the OP because I do constantly add to my tools, but I tend to be about 1 year behind and prefer to wait until things settle before I choose technologies. I would say you suffer from a combination of analysis paralysis and simply just fucking around too much! One thing that helps, I feel, is to just allow yourself some time for experimenting and deciding upon your development stack. Give yourself that time guilt-free, but set a limit. Then when you've decided, just force yourself to stop dicking around and get to work. It's important to realize that you will probably regret some decisions and celebrate others, but that there is almost no way you will know which is which until later. This is just the way it goes. There will always be more shiny things to play with on the next project!