For every great idea, there are a hundred reasons not to do it — if we let ourselves come up with them. For Issa Rae, the creator, writer, and star of the HBO series “Insecure,” finding her creative voice meant not making excuses. It’s easy to procrastinate, doubt, or find reasons to not chase our dreams, in any part of our lives. Rae’s words here remind us that success often follows once we get out of our own way, and instead of talking ourselves out of something difficult, find a reason to do it.