Hello Myriad. Interesting topic. You and Lucky Lou have already hit a lot of mine, so I will try and add a few different ones.
I try and get the same amount of sleep each week, no more, no less.
I try and get some sweat exercise in at least 3X per week and no, sweat exercise isn't walking on the beach on a hot day LOL
I try to take my meds at the same time each day.
I try to be honest with my pdoc (that can be harder than it sounds

I try not to become obsessed over things that I cannot control.
I try and be patient. (with varying degrees of success

I try to realize that an a**hole will always be an a**hole and not to get worked up by their comments. There is no way that I'm going to change their opinions, no matter how wonderful my arguments are. Better to just smile and walk away.
I try to avoid as many triggers as I can
When the little hamster in my brain gets spinning in it's cage a little to fast I try to concentrate to slow it down.
I try to remember that sometimes that I just need to be alone.
When I slip up and don't follow my own rules, I try to learn from that rather than berate myself for slipping up.
I always try and remember that I'm a good person with a bad illness, not a bad person with good excuses.
I try to remember that I'm not alone. Take Care. paulm