Disabilities causing suicidal thoughts

I have several disabilities and I’m unable to work which makes me feel so useless and worthless. I’ve tried to get help with mental health from so many places over the years and they’ve all been unhelpful. I’ve ran out of hope and options and don’t want to be here suffering anymore. My life has no structure and purpose and there’s nothing I want to do with my life. Impulse buying is causing me to be stressed out my mind and I can’t keep my own cards anymore and I’m dependant on my family which makes me feel even more useless. My head is constantly racing 1000mph and never shuts up and I can never stop overthinking and stressing about stupid little things. I’m always fatigued, in pain and have no energy. What is the point?