Anyone have any regrets from their past

1. Didn't try hard enough in college.
2. Didn't date enough-mostly due to always being broke.
3. Don't save enough money.
4. Didn't kiss butt &/or play nice with the jerks at work and advance much faster in rank. There are plenty of opportunities for people to power-trip in the service.
5. TIME & TIME AGAIN I should have kept my mouth shut at unrealized key points in life.-There are many times that I did successfully, & quite a few I did not.
6. I should not have driven as foolishly as I have in the past.
7. I wish I knew better how to avoid being ripped off in this hobby.
8. I wish I knew ignition trouble shooting better-have been stranded a few times.
9. I got conned a bunch time & again in the process of joining the Navy, (despite interviewing several military personnel from all branches) I regret getting stuck on Trident submarines, which do not travel to any ports at all-the major benefit of being in the Navy.