Waswasa Is Ruining My Life, I Feel Hopeless

Assalamu alaikum. Lately, my waswasa has gotten so bad, I'm scared to even make wudu. I delay it as much as I can and wake up super late just to avoid the painful day ahead. Every day is the same miserable routine: taking forever in istinja, doubting if the water reached every part, spending ages on wudu, then constantly researching and doubting every move in salah. I can't even follow the advice people give me because I'm so stuck. I don't know how much longer I can go on like this. Sometimes I think being dead would be easier, but I don't really mean it-I'm holding on by a thread to keep praying. My skin has ugly marks from all the time I spend in wudu, and I can't even go out with anyone. I've posted about this many times, but I still don't know what to do.