Can people really change?

Ok so this nofap stuff has taught me some really good concepts. Porn had me in a daze, in a dream-like state. I am starting to develop ambition and goals and realising who I am.

Who am I? The only answer to this is I am the next decision I make. Today, we can be fap-champions, tomorrow we can be fap losers, or next year we can be nofap lords. I realised that my passion in life is policing. I want to join the police.

Why do I want to become a police officer? I want to become a police officer because I want to 'serve' and 'protect' - and im willing to die for it. I wanted to join the police ever since I was 16 (32 now) I want to serve the local community, in all aspects that I can. Working as a security officer for the past five years has taught me what it means to me to help and protect the local community. In all aspects to catching shoplifters, first aid incidents, giving advice/guidance, detering crime and playing a part in the wellbeing of the local community.

It isn't about the badge or the power, take these things away and I would be doing the same things. You could say, well you can serve the community in all aspects, but I honestly believe my strengths are best suited in this line of work which would allow me to help the community more.

This is the problem I have. I do have a background. When I was 16, I got into a fight and was arrested. I ended up with a criminal record. I won't mention things like 'oh, it wasn't my fault because it was my fault. I accept these things. I did wrong and had to face the consequences of the state.

I then in 2010, had a ex girlfriend who would strip me naked and run away while I was intoxicated, i was caught twice for this. Now that the relationship ended, i haven't been in trouble for 10 years. ( I am 32 now)

I think to myself - i shouldn't bother trying to become a police officer because maybe i don't have the integrity or honor to become one. I look back at my past and think maybe i am just a criminal who can't change? then i think this can't be true, as i have served the local community for the past five years, i even pick up 10 pounds off the floor and hand it in. Can people really change? I feel like i am not the same person as i used to be. Then I start questioning myself, with things like 'a police officer would not have allowed that to happen with my ex girlfriend'.

I guess honestly, the humiliation of a rejection would be too much to bare. If i am rejected for my past, than the state still sees me as a criminal which is the complete opposite to what i am now.

what do you all think? I do value your opinions. As a police officer i would be not only a representative of the queen, but also a representative of the people.