Apple Watch SE series 2 not working, crashing

I have an Apple Watch SE series 2 watch that is just over a year old, meaning not under warranty anymore (and yes I was stupid and didn't get AppleCare for it). It has worked perfectly this whole time until a couple days ago. It started with the display not coming on. I know the watch wasn't dead as it had 80% before it the display went black. I could feel the haptics when pressing the buttons. I restarted it hold the two buttons until the Apple logo appeared. I thought all was good. A few minutes later the display went black again and nothing would turn it back on. I restarted it again and when it came back on the crown button no longer worked. I put it on the charger did a hard reset and it would intermittently show the apple logo. I left it on the charger for the day. I went through the phone and did factory reset, erased all data and settings. Once it was back on I paired it with my phone again and all seemed good. It worked for a few hours then went back off. Tried erasing it again and now I am left with a watch that won't turn back on, won't restart and won't connect to my phone. Any ideas what is going on and how to possibly fix it?? I really want to avoid taking it to Apple since I don't have apple care I am certain it will cost more for them to fix it than what it's worth.