Feeling depressed

I’ve had scalp psoriasis since I was a child but wasn’t really diagnosed until I was older and was treated as bad dandruff. I’ve managed to control it but mid way last year it got extremely bad and I had a flare up. Managed to get it under control but I’ve now got it on my face on my eyes under my eyebrows and around my mouth. My skin itches like crazy, my skin is sore and I feel embarrassed to leave my house. My skin is red and it’s like I have dandruff on my face flaking everywhere. My GP has been prescribing me 1% cortisol creams for nearly a year. She’s finally put me on something different a 2% Nizaris but it doesn’t seem to be doing much. Some days simply opening my mouth to eat is painful as my lips crack and it feels like I had a blade make little cuts all around my mouth. I can’t get a dermatologist appointment till April and can’t afford to go private. Had anyone else experienced this type of psoriasis? Especially on the lips? I’m trying to understand what other options for treatments are available.