Psoriasis /Insomina Request Advice

I'm a 45 year old white male 5' 10" 265lbs. I never get sick, I barely even get a cold once every few years, but when I do get sick I usually get real sick. Can't remember how long I have had Psoriasis but I would say 3-5 years+. I have patches about quarter size silver scales on both elbows that feel like sand paper. I also get the scales on some of the knuckles of both hands but they seem to come & go and the same for right below both knee caps that come & go. The elbows are bothersome as they really stand out & they never go away the wife is always commenting on how they feel like sand paper & they look bad. They don't itch at all. Other things that might help you know a little about me. I suffer from insomina it takes me a long time to fall a sleep I often wake two or 3 times a night to go pee. Tired alot due to lack of restful sleep. I'm always HOT & I sweat like a pig at the slightest amount of physical work or movement. Body odor is really bad sometimes but didn't always seem to be that way. Sweets are my downfall which is why I'm over weight and I don't exercise much. I'm not allergic to anything that I know of. Mother has Diabetes Father has high BP & colon issues. I have regular bowel movements at least 2 to 3x a day but sometimes with Extreme odor. Drink probably about 4 glasses of water a day on avg. I'm currently taking Vit C & B complex. I also take DHEA tablets twice a day. Other than having lymes disease in my early twenties Like I said I almost never get sick. So after all that said I'm looking for advice on possible psoriasis treatments & if any one has any advice on something to help insomina that would be great also. I'm also taking a product I got off another web site called Sleep Release from Dr. Decuypere I'm up to 7 pills so far and nothing, not working for me. I just can't seem to shut my brain off when I go to bed. I would say in general it takes me 30 to 60 mins to fall a sleep & sometimes up to a couple of hours & then up every couple of hours or so to pee makes for some pretty poor sleeping. I have the dark bags under my eyes to prove it. Any help or advice anyone can give would be appreciated. Thanks In Advance to all that respond.