If you could turn back time?

Hi, I think most people could probably fill a notepad full of things they would change if they could turn back time.But a few things i really regret and wish i could turn back time for would be,I wish i had stuck in at school and ped some of my exams but at the time you think you know everything and dont need to go to school(big mistake),I wish i had seen a bit more of the world before getting married at 19 years old(i am still married age 35 years old),I wish my parents werent such bad people then and now,and i really wish i had kept in touch with some of my friends from years ago.Im going to stop now because i think i could keep going all day then everyone would fall asleep and that would be another thing i wish i could change.