Please help - need remedy recommendations for joint pain and psoriatic arthritis

I am hoping that someone can give me some recommendations. I am a 55 year old female who is suffering with psoriasis and severe joint pain.

Psoriasis (not affected by heat of cold)
1. Both ears worse on left side (scaly, mildly itchy)
2. Left elbow (outside joint oval about 2" diameter, flaky, slightly raised, lighter than existing skin color)
3. Left ankle (outside joint - large oval approx 4" in diameter, flaky , bright red, slightly itchy)

Joint pain (moderate to severe) left side
1. Rear Left hip (worse when not mobile - heat can improve the condition slightly)

I struggle with anxiety and depression which I control adequately with Wellbutrin and some supplements, including 5-htp, theanine and SAM-E

I have lately been struggling with laziness, lack of motivation, and sometimes feeling overwhelmed. Additionally, I do have cold hands and feet. I can be a bit of a hypochondriac, I have a fragile ego and worry a lot about what people think of me.

I had a very abusive childhood, bullied as a child which I think attributes to my emotional trauma and anxiety.

I had a complete hysterectomy 5 years ago (including ovaries) and have gained quite a bit of weight which is obviously making my pain worse. I have been dieting and walking to try to lose weight but I have not been able to drop weight.

I was going to try rhus tox 30c for the psoriasis and severe joint pain but I am wondering if I should consider different or additional homeopathic treatments instead.

I hope I have provided enough information and truly appreciate any recommendations. Many thanks