No one loses or lacks a personality. I just have to say this. Everyone whether isolated and alone or in crowds or groups of people everyday retain their own individual likes, dislikes, values and opinions on things regardless of whether there are others to see or hear these things from them.

I grant you that it feels that you lack the opportunity to express yourself but trust me you're not going to lose your uniqueness. It would be good to find others to be around at least a little but not to restore your personality, but for many other reasons. we benefit from being able to reflect on things to others and hear their thoughts and impressions of our own, relate or disagree with them on other things because it creates a better environment for growth and especially critical thinking on everything in our life.

I hope that you are able to find a way not to be as isolated as you have been. There is a good chance that if you put yourself out there you'll find at least a few that can relate to you, even if a good majority of the masses are annoying