<human>: Give me a shortened version of the text

Heads up: I am a Junior in HS.

Here. We. Go.

   I have been always told I was a nice person by parents. But the kids did not like me that much. I remember most of them liked me before I entered middle school. I can admit, I was a complete asshole. And socially awkward. I don't even know why. I was very social before middle school. To this day, that is still an enigma. Well after ninth grade ended I decided it was time for a change. My grades were terrible, my social skills were terrible, everything was awful. 

It was time to change. 

But before I get into that, a couple of family friends who I was good friends with, after a party, unfollowed me from a plethora of social networks beside Facebook. At that stage of my life - I had that belief everyone was jealous of me, so I brushed it off. The thing that turned everyone off was that I would talk so much, be mean, and brag about everything I had. If I could, I would go back in time and beat the shit out of me. I can't believe I still had friends at that point. 

Fast forward to tenth grade. I met a couple of them at super bowl party. Keep in mind, I have tried my best to change and I believe it was somewhat successful. Couple of the people (I am not going to sugar coat it) who hated my guts actually liked me. And started following me on social networks and kept in-touch. So obviously that's when I came up with the conclusion that I have changed tremendously. There were still a couple of people who are not fond of me when I was there. I tried to strike up a conversation and they basically brushed me off. 

I don't even blame them. 

Well, I got invited to, let's say Jacksons, grad. party. He was not one of the people who liked me. The only reason I got invited was because my parents and his parents are close friends.

 What can I do to show that I have changed?
<bot>: I was a little arrogant shit; people hated me; I changed drastically; not too many people hate; invited to one of their grad parties; Want to show I have changed.