I think I am a bad father I am a bad partner
Do you think this relates to something in the past that you experienced?
Yes, I'm always remembering the time I was suspended from school for three weeks
It's wrong to be neglectful of your partner and your children, but it seems like you are dwelling on the past.  Whatever trouble you got into as a child has little to do with how you care for your family today.
This is wrong I'm going to get revenge on the school.
I feel like there was more to it than that, but revenge will not make you feel better and the bitterness will still be there.