Can you come back from ego loss?

I know this may seem contradictory since I am asking this question and forming some thoughts. But can your ego ever come back after being "turned off". I experienced depersonalization from smoking marijuana and it's like everything crumbled in my brain. I basically lost sense of who I was and everything else. I then started getting into Eastern theology (spirituality) which probably exacerbated my depersonalization making me "one" with everything. Completely eroding my ambitions in life and desires. I'm only 18 so I guess I have some more time on this earth lol...but will my ego ever come back? I used to have thoughts in my head that kind of grounded me and now it's just a blank slate. I feel unmotivated to interact with people and have nothing to prove. I'm basically apathetic. This is beyond depression because there are no "bad" emotions attached. Just want to know if in time some sense of my self will return along with more brain activity. I know it's not permanent because if it was I would be enlightened like the Buddha and I dont think that can happen in a year. I know it can take a lifetime to attain. I basically just lost my mojo lol for lack of a better word.