Realistically?

I'm very cynical at heart, so take this with a grain of salt;

If there's something you want done, you can take all the time you need, but if you don't ever do it, it won't ever happen.

Getting down to the grit of only doing one thing in the moment is all you can do besides nothing.

As a obsessive procrastinator who lives in fear of regret, I promise that doing something is always better than nothing.

Also, failure is not to be feared. Until last week, I couldn't bring myself to truly believe that, but it's true.

Finally, understand that anything worthwhile is going to take time & effort; that is, it will always cost you, and it won't always be worth it. But time spent in worry is the only time that's truly wasted.