Yes, DBT is a good option. I'm going through a DBT workbook at the moment. Like Teddy Bear suggested, affirmations and a gratitude list are good too. I like to-do lists when I can't move. I spend a lot of time at my desk not wanting to get up. So I write down the things I need to do and break it into tiny details. I think of what's the easiest thing to do. You accomplish that and then momentum builds. You just check it off your list and then keep going. Reward yourself after.

I'm sending good thoughts your way. I wish you success.