If you are stuck in the middle of a dilemma right now, doing something what you think is right (even if you are not totally sure it is right) is better than doing nothing at all. So stop trying to nail down every single detail. You can't eliminate every single potential problem. It's time to start acting! Things are never going to be perfect, so if you are waiting until they are you will be waiting a very long time -- too long, in fact. You need to keep moving, even if you don't know exactly where you're going