You probably have an alter ego if you have ever made choices and either a few minutes, hours or weeks later really regretted them and wondered why, why did you do that?!
Why do we have alter egos? Well, why do we have egos? It’s only my guess but an ego is where we take the beliefs we have learned about the world and formulate a singular point from which we can operate under those beliefs. For example, if you think gravity is real, your ego will not try to fly. Ok more complicated, if you think you are a bad person, your ego will work to hide or conceal that fact while simultaneously enabling you to be bad. I really don’t understand egos but they are a formulated mask or shield that allows you to maintain a sense of self and operating system for dealing with the world. It is a good thing to be able to disengage your ego when receiving communication from others in relationships particularly if you value the other person such as a partner or a teacher. This can be difficult. And, rest assured, they will mostly likely have an ego too!
So, the alter ego, this may be where you have two sets of beliefs that conflict with one another and when your primary ego can’t integrate an event that has taken place in your life, for example your girlfriend cheating on you, then you will subconsciously resort to the alter ego who can then alleviate your primary sense of self from acknowledging the facts. To continue the example, gf cheated so alter ego comes along and says I don’t need anyone and pushes the ex away and runs away, buys a pack of cigarettes and abandons projects.
A confusing question is how many alter egos do you have? They may not all be negative. When I find myself saying “yea you know what just forget this, I don’t need this I’ll just do ____” that is probably my alter ego talking and no, it won’t make me happy. You can’t follow an alter ego because eventually your primary ego will come back and look at what’s happened and say “how did I get here?” The key, as always, is awareness and centeredness. Keep steady, be patient, wait and relax.