1/ Don't overthink, don't take everything too seriously, don't have high expectations, don't make assumptions.
2/ Don't let past experiences colour your perception of people in the present.
3/ Don't run away; if you do, just run, don't throw rocks at people.
4/ It's better not to break things than to break things and try to fix them.
5/ Being emotionally crippled, broken and insecure is no excuse for acting like an asshole.
6/ Don't take people for granted; don't expect others to put up with your shit.
7/ To wrong somebody feels a lot worse than to be wronged.