>>I'm going to take time for me today and go to lunch with my brother.

This sounds great, I hope you had a good time. I do believe that laughter is the best medicine. It breaks down stress and maybe will help give you the "recharge" you need or at least put you on your way.

Long ago in one of my groups we had to draw concentric circles on a piece of paper and write down our support systems... in the center, the people who we trust and have no or few secrets from, and those who we could call in an emergency, including hospital and hotline numbers... In the next circle out, people who you can go to when you are not in crisis but that can help you out of a bad time... as the circles go further out you reach people you are less close to but you know they are fun to be with and can lift your mood when it is drooping and won't trigger you...

Sounds like you have a sense of this in place and your brother is in one of these close circles... so recognizing that going to lunch with him will be a good thing is another important skill to be proud of, second step after "recognizing there is a problem" ie "do something about it" (and posting here counts too )