Upgrading an *older* HP Pavilion.

So I've gotten an older HP Pavilion for absolutely FREE, and while it isn't the best by any means, I like it! But I wanna upgrade it with whatever money I can get over the summer. I was thinking about buying a RTX 2060 in exchange for my current GPU, but really just want advice or even know if its compatible!

I'll list its current specs below, just really looking for upgrading advice.

I'm 16, so- take that as you will.

GPU: 1650 Super
RAM: 16GB DDR4
CPU: Core-i3 10100
Motherboard: Don't know tbh..
PSU: 400W
SSD: 1TB

The fan is factory stock!