How to treat severe arthritis and nerve pain in my spine and left leg that affects my daily life?

Hi my name is sally Pennington and I have a lot of problems going on with my spine left knee and left leg i have severe arthritis in my spine and big spaces in between my spine my back hurts all the time pain is very severe never stops hurting and makes life miserable also I have a pinched scaratic nerve in left leg pain is worse than my back my leg goes from tingling to like it's asleep and gets really heavy can't walk on my leg when this happens it's happening everyday now and I'm trying to hold down a very strenuous job that requires a lot of moment also my left knee is so bad it hurts so bad I can barely stand the pain it never stops hurting can't sleep from it I can't bend it it has affected my walking can't take off walking soon as I get up got to stand a min then start hobbling I been wearing a knee brace for 3 months don't help at all been to a dr she never would do anything so I have gotten a lot worse scared I'm going be disabled before long I have so bad my knee hurts to barley touch it it's all I can do to stand the pain they have took multiple trays of my spine knee lower back but never offered anywhere I begging for help I'm 5q trying to work everyday so I want be homeless but I'm going down hill fast plz can you help me or tell me who could help me I have north carolina medicaid and I only have it to August or September and trying to beg for help before it stops and I end up in a wheelchair or or I end up disabled could u message me back and let me know what I can do plz have blessed rest of your day waiting to hear back from you asap