Dealing with Hyperhidrosis: My Struggle with Excessive Sweating

So, I have Hyperhidrosis and have done since I was perhaps 14, thanks to the negative side-effect from an anti-psychotic medication I was on for a while- but am no longer taking/nor have I for over 6 years. This specific medication was so damaging to my body in more ways than one, but luckily for me overtime most have went back to somewhat normal. Well, apart from my body’s ability to manage temperature and the absolute bane of my life which is the mass sweating. It doesn’t matter if it’s -30 outside, I will still be sweating something chronic (whether I feel too hot myself or not) as if I just beat no other than Usain Bolt himself in a sprinting race. It ruins my self confidence entirely. I mainly get it along my hairline, neck and scalp, which means I’m usually left with streams of sweat running all over my face and my hair appears to be sodden. I don’t mean to sound dramatic- but this ruins my life. I dislike going clubbing with friends because I know my body will start to pour with sweat within 10 mins of being there. It also makes me avoid leaving the house unless there’s a dire need because I just know I’ll be soaked in sweat. It’s gross and off putting to me, never mind anyone else. Ugh. I’ve been to the GP several times over this complaint and was firstly given a facial antiperspirant- which did nothing at all but cause itchy rashes on my face. Then every time after that, they’ve claimed to be happy to give me meds yet… months later? Nothing. No meds. No follow up. This will now be the eighth time I’ve had to make an appointment to chase them. I’m exhausted, stressed and above all- depressed over it all. Does anyone else have this condition and know any tips/hacks to combat it? I’m at my wits end here.