Sweaty fingers and performance anxiety

This has been a problem for me on mobile (phone). I have pretty huge fingers and have made my controls bigger to accommodate that. However, my fingers do get very sweaty whenever I play which compromises my gameplay a lot.

For example, whenever I play prospector, I would accidentally switch my magnet to a different polarity or even throw my magnet when I meant to switch polarities. I have tried to slightly change my controls to avoid this from happening frequently which has brought some changes when I am more calm. But when my fingers are really sweaty do the controls work against me.

Same can be said with Fool's Gold (sorry, I play both Nortons). I have practiced and tested these controls in single training to see what needs to be changed, even going so far as to do some practice bot matches to see if the controls fit well. Yet when I enter an actual match, the controls can work against my favour. My sweaty fingers can make me throw my pickaxe when I didn't mean to or make me dash to it when I meant to press the retract button instead. No matter how much I tweak it, this is the end result.

I was wondering if anyone has gone through this problem and if so, how would you suggest to fix it? Is it just trial and error? And yes, I admit that the sweat is from my anxiety. There's always a pressure to perform well regardless of what faction I play. It's more prominent when 1) As surv, I am the only support (harasser) in the team if I pick Norton and teammates drop like flies at 5 ciphers before complaining that I don't harass...Like dude, that's 5 ciphers and I still have one magnet that can only do just as much + Harassing at 5 ciphers is a big no-no, at least for Norton. 2) I am picking hunter up again months after quitting because I got a full Alicorn team in quick match months ago as a tarantula and they said I sucked : ') I have won my matches so far and pay no mind to survs getting more points and whatnot, but the aftermath of a spike in anxiety can be tiring.