Husband having lots of stress and anxiety

Hi there 🙂
I know that we need to work on our models and ours only, but for a few years now, my husband has been suffering from a lot of anxiety and stress.
He has some tics such as eyes blinking, moving his hands/legs and as much as I want to support him, it became hard to bear with all of this.
I know that it’s not what he’s doing but it’s what I make it mean and I really want to support him, but how can I manage my brain about something so annoying?
Thank you for your help! 🙂