[jansan]

If I were you I would try to get a job where people are aware of your situation and give your breaks whenever you need them. Freelancing adds extra stress, because you are outside the "easy" system for taxes, welfare and healthcare. As an employee all this is handled by your employer, which can be a great relief in times of stress. Maybe try to find a job at a government related employer. At least in my country they are generally less performance oriented.

Also, like others said, don't write yourself off. Your injury may need time to heal and you may be back sooner than you think. Try everything not to burn out until then.