How to deal with uncertainty

I know that confusion and uncertainty are indulgent emotions that we shouldn’t dwell on. But how do I actually deal with them? I find myself trying it ignore them and to take action, but then the confusion and uncertainty end up growing stronger and I stop taking action. I then beat myself up for not taking action and not making progress. I know I’ve also been buffering the feelings of confusion and uncertainty by doing research and looking for answers online and outside of myself. I honestly don’t know what the answer is this internal question I have and I don’t know what to do about it.