Be ready. One of the most annoying and hurtful things is when something from the past comes back to bite you in the ass. If you find yourself in that situation, just be ready and try to shake it off. If it’s in the past keep it there and don’t let it affect you, because who you were then and now are different people. You’re older and you’ve experienced more in that time between that past and the present. Prove it by either fixing or shrugging off that past, whether it be a mistake or a momentary lapse in judgement.