- Find an outlet for competitive urges. Could be gaming I suppose, but something physical is better. Softball, basketball, kickball, tennis, boxing, etc etc
- Supplements. Personally, I've had good results supplementing fish oil and vitamin D3.
- Keep a dream journal. I almost never remember my dreams after I wake up, so I haven't really bothered with this, but I have some friends that swear doing this helped them a lot.
- Read the classics. If you haven't already, delve into some classic great literature.
- Read non-fiction. This is my next horizon. I love reading novels and such, but it's still escapism. Reading non-fiction topics challenges you more (depending on the subject of course).
- Find something that resonates with you spiritually. Be it religion, or something else that speaks to your core, find something that really uplifts you spiritually. Many people neglect this aspect of their lives in our modern society.
- Find a good hobby to occupy the time you're not working. Hiking, restoring old cars, riding motorcycles, painting, music, etc etc.
- Travel someplace that not everyone goes to. Everyone always seems to talk about getting time off and heading to Las Vegas or something. Break the mold and go to Cape Town or Trinidad or Tierra del Fuego or some other far flung place (preferably not a warzone unless that's your thing).