Tried installing dashcam, ended up with a car that won’t start, what now?

I tried hardwiring my dashcam onto my car and now it won’t start. I started off by testing the fuses to see which ones are ACC even though I had a diagram that showed exactly which ones are, I just wanted to be sure. I tried to measure for 10A current since one of the ACC fuses were 10A, so I put my multimeter to 10A and I connected it to ground and the red to the fuse and a spark appeared. I’m sure it was either my immobiliser fuse or electronics fuse that blew because the car wouldn’t start after that. I tried replacing the fuse with a fuse that’s basically useless (or not required to start the car) so I found a 10a fuse that was for the indoor lights and I replaced it with that one for the time being and now my car jitters and doesn’t turn on. I’ve tried jump starting it but it’s not working so now I’m panicking. Any help would be appreciated