I had a problem with making decisions too, and making good and fast decisions is an area in which I wanna grow as well.
After I read somewhere that most successful people make decisions fast, I decided to test it out...and I made a whole lotta bad ones!
But the 'ouch' from the bad ones have helped me become better at making the good ones, I believe. Of course, I didn't cut my teeth on the major decisions, like whether or not to quit my job on a whim. But borrowing a book or choosing lunch I could do.
Test it out