Okay, I know this has probably been posted a thousand times over, but whenever I search, I never get what I need.

When I got my car in the summer, the pulse wipers sorta worked - then they stopped, so I had to always use Low or High (I dunno if the Mist worked or not), but a few weeks ago, my low wipers randomly stopped working, leaving me with only high, and since only high worked, I'd have to time the wipers to stop them, otherwise they'd just stall on my windshield. Then, 5 minutes later, low came back - and so did delay! Then, as soon as it had started working - delay stopped, but low continued to work. I pulled the wiper cover off that day, and kinda wiped the contacts off with my gloves a little, and pulse came back. A few days later, pulse went away, leaving low and high, again (I think mist still worked). However, about 3 or 4 days ago, low stopped working again, leaving just high. The wipers won't hide themselves fully either anymore because of all this. I pulled the cover off again today, cleaning the contacts as best I could with rubbing alcohol and tested the wipers - with no result. Right now, I am stuck with only high (that don't seem to even be high (they're like low speed)), and I'm trying to figure out what to replace.

I'm thinking the wiper cover, but could it be the switch inside?