Until you are in your mid 20s, you experience almost everything for the first time in your life (early attempts to relationships, paving a career path, expectations from people etc), reason you make a lot of wrong decisions. And its perfectly OK to commit mistakes along the way and learn from them. One of the several beautiful things about being yourself and making wrong decisions is you truly learn, and you truly improve.
You are in your 20s or above, "Right NOW" is the best time to apply the lessons learned from your mistakes in order to spend rest of your life without regrets. Those lessons will help you to uncomplicate ourselves, and when we uncomplicate ourselves, we uncomplicate our interactions with others that leads to pleasant experiences. The bottom line is when we stop doing wrong things and start doing right things, our experiences become pleasant and relationships get a lot easier. Right now is the time to realize factors that has a lot to do in making of a happy life;