I completely understand the feelings you have around the holidays. I used to verbalize my feelings (as in "I hate the holidays) then happened upon the suggestion that the more I verbalized that feeling, the more I felt it. So, last year, I vowed not to say it, and it was better, even though my dad had just passed away on Dec.8th.
Because of my faith, I wanted to honor the meaning of Christmas. Honestly, I don't remember much about it, except the fact that I did not say "I hate Christmas". I was able to visit my son and his new family, as his little girl was born Oct. 28th. They lived about 3 hours away at that time. It helped a lot, being able to see, hold, and be with my granddaughter, but the drive home took me approximately 2 extra hours. I had to keep stopping to let my tears flow. I was blessed with the memory that dad got to hold his 9th great-grandchild before he passed.
The holidays had already been painful for 19 years, due to my daughter's passing on Nov. 18th, 1993. Slowly, I had gotten so I didn't feel so empty during the holidays, mostly because I have been my parents' caretaker since 2004, and live close to my nieces, and their children.
My 't' over the years, has had many suggestions about how to deal with the holidays. I used to dread them from August, all the way to January 1st, when I feel a 'new start' has come. That dread, is back, but I will try to make a point of seeing the children in the family, and not thing too much about the dates. I guess my outlook during the holidays would be described by the attitude of "grin and bear it" and "this too shall pass". Thankfully, the calendar always proves it.
Now, on to your specific question. (((Change))) My thoughts are...maybe you could create your own way of honoring your brother, although I don't know if you were close or not. I am so sorry that he was in so much pain, and felt the only way to heal was to take his own life.
Maybe setting up a little area in your home that is comforting, like a candle (I use the 'fake' ones, I fear fire) some angels, if that fits in with your faith beliefs, and some Christmas 'pretties'.
Do you have a pet? They can be very comforting, if you are able to have them. You might also consider volunteering at a 'food kitchen' where people who are homeless, or have no family, get together for a meal and conversation. Also, maybe you could volunteer at a women's shelter, where there are probably children. Giving to others from our hearts can ease the pain of the holidays.
I wish I could think of more...all of this is just off the 'top of my head'. I will continue to think about it, and come back if I think of some other ways I have coped. I've sent many helium balloons up to honor my daughter, in attempting to 'let go' of the pain the holidays bring.
I hope it helps to know that you are understood, and not alone in your feelings, and dread of this time of year.
Blessings & Prayers sent your way!