HELP REPLACE MY LEMON

I bought this camera brand new a few years ago and it has caused me nothing but problems since.  In contrast to my Canon photography camera (that I have used and abused, shot in the rain / snow and never had a problem ever), I have babied my Lumix and the thing has never seen even a hint of precipitation.

The first thing to die on the Lumix was the LCD screen.  I tried making a vlog and halfway through, the screen stopped working.  I found a workaround with that and started to use my computer monitor as reference.  All good.  I can work with complications.

Then my eye sensor started to go crazy.  If I looked away for a second, it would just stop responding to me.  So I took a piece of cardboard and taped it to the thing so that wouldn't be a factor.  Okay, fine.  All good.  I can work with complications.

Last night, while I was trying to shoot a video, the camera locked up and seized.  Now, no matter what lens I attach to it, the camera doesn't recognize the thing and I am left in perpetual anxiety trying to figure out why.  I cleaned the sensors.  I set my firmware on my camera to the previous version.  I did everything that the internet told me to do.

Panasonic told me that it would be $700 to fix.  And I don't have $700.  But even if I did, I've had such a hard time with the camera almost from the day that I got it that I don't want to invest even more money into it just to have further problems in the future.

So instead, I want to go the route of a different camera entirely.  I want to get a Sony mirrorless camera and a lens converter so I can use my Canon lenses with it.

I hate to even have to do this, but there is no way I can continue with my video projects if I don't, so that's where you come in.  If you like what I do, please consider helping me out.