Have you tried alkaline water? Some people say it's a scam, and others swear by it. I have tried it off and on for a while now and think there is a noticeable positive difference. I think at least for me the reason I did it notice it before was because i was really acidic. I used to drink a liter if soda a day and eat McDonald's at least once a day because that's all my work had.

Oh and I also practice deep breathing. I try to take a deep breath and be in the moment at least once an hour.