Most of the time we as humans, tend to over think specific moments in time from previous conversations and interactions in effort to relive how those situations could have been better if you had only said "this" instead of "that" and "if only i didn't have that reaction than maybe things would be better...". This is something that we are all guilty about doing. Having the awareness of this fact will benefit you and help you from overthinking. Send out positive vibes by thinking and feeling happy thoughts. Give yourself compliments, say what you are grateful for, say and repeat your goals in a way that states you already have these things happening to you. Great things will happen and are waiting for you and your positive vibes.