1) No matter how bad it's going for you, someone always has it worse.
2) You are truly blessed to have the people you have in your life. Don't take them for granted.
3) Little decisions other people make can change your life completely. When I was a child, my parents were divorced, and we were living in Miami, Florida. My mother randomly chose to move us to San Diego, California (she literally just pointed to a spot on the map and said "sounds lovely"). Now I'm set to get married to the girl of my dreams and couldn't be happier.
4) Miracles can happen. The same woman who I'm set to get married to almost died from cancer when she was 6. She was on her last breaths, having her "Anointing of the Sick" sacrament done, and miraculously survived that night and several others similar. Now she is in great health, although her mother had a similar battle with breast cancer this last year, but is now in remission
5) Drive carefully. Being 60 seconds late to something is better than dying 60 years too early, or ending someone else's life.
6) Be 100% honest to your partner about everything that's happened in your past. It may bug them, but you don't want them finding out later, because then you're a liar and an asshole. If they can't accept your past is behind you, they're probably not the one for you anyway/
7) Don't drink and drive. It may be an inconvenience to take a cab or walk home, but so is a DUI.
Don't make a decision that gives you 15 minutes of gratitude and can cause you a lifetime of grief.
9) Don't work too hard and sacrifice time with your loved ones. You will never see on someone's gravestone "I wish I had worked more".
10) Always take a chance with the girl/guy, but pick your spot, obviously. You don't want to be looking back on your life in 10 years and be thinking how you wish you had. "You miss 100% of the shots you don't take."
11) No matter the score, Liverpool FC always has a chance.