Distorted sense of time

First of all, i'm sorry if my english seems incomprehensible at times because it's not my first language.

Lately, i feel like time feels really distorted, what's been years feels like it's just a few months ago to me. I'm currently 20 years old, but sometimes i feel like i'm way younger than i actually am. It feels like i'm stuck in the past and the life that i'm living right now is just a dream, everything feels so unreal. I feel like my real body is asleep and this is just a very long dream because of how unreal everything around me feels.
I feel so stagnant because of this, because time pass so fast in this "dream", i barely have any time to do anything or to improve myself even if this isn't a dream. In a way, I'm aware that this is reality, that's why i yearn to improve myself, because if I don't what will my future be like? This is so frustrating

Time is a very strange thing. I think it's probably one of the things we are still in the infancy of understanding. It's so odd how we only have so much of it, and lot of people act like they have an infinite amount.
In my experience, time only speeds up the older you get too. A year feels a lot longer when you're 24, but goes by in a blink when you're middle aged. I think a lot of people feel younger than they are or find it hard to believe X number of years has passed. I definitely am one of those people.

I think it's great that you want to improve yourself and live life to fullest. I will also say, you're only 20! I know it can be shocking to be 20 when you've been a teenager for so long. But 20 is soooo incredibly young, so don't worry I am sure this feeling will pass. Enjoy your youth while you have it. It's such a gift!