Are there any legit grants that an individual can apply for?

I’m disabled due to damage caused to my lungs. Y Covid, as well as to super morbidly obesity and other underlying health issues. I’m in serious need of something while I’m waiting to get on disability. They’ve already denied me and I have an attorney helping me appeal the decision. My health is really bad and I need to lose weight ask but that’s impossible due to the severe damage to my lungs. I need a breath machine, and a wheelchair but I don’t have the money for any of it and my doctors think I’m nuts when I ask about them. I really need along with so much health supplies and what not. I need help. So are there any grants I can sign up and get?