I honestly don't regret any of the choices I made in the past 3 years
What kinds of things did you do in the past?
I did do a lot of illegal things in the past.
It's usually a good thing to be able to look back on one's past without feeling any regret. However, people need to recognize the consequences of their actions, and take responsibility for any harm they might have caused.
I don't have to take responsibility of the past, it is already over.
Even though it is over, the effects of the things you have done are still present. Those are the things you need to take responsibility for and understand.