A. A big difference between a DSLR and a high-end compact camera is the ease of use. When I had my Olympus C5050z I could shoot in manual mode, change aperture, change shutter speed but it was a pain and I rarely did it. With my DSLR I turn one wheel to adjust aperture and turn another wheel to adjust shutter speed. It's thumb and forefinger. It's easy.
B. Please ignore the brand fanatics. For some their brand or their camera has to be the best. Not the best for them but the best for everyone. Decide what's important for you to narrow a search for a DSLR.
C. Every DSLR on the market is capable of producing excellent photos. The primary variable is the photographer. That said, there are differences that matter. For me, I much prefer in-camera stabilization over in-lens image stabilization. Both work but I'm cheap.
D. I live in Mexico so my sister brings me new cameras. That's called smuggling. She got a new camera for me and I asked her to take some photos to make sure at a basic level it worked. She called me and said, "This camera is fun to use. It's so much easier for me to use than my camera. I'm enjoying it so much more." That's a big factor, in my opinion. So, narrow your search and then handle and check out some of the cameras.
E. Camera clubs are a great place to get opinions and see other equipment. When I started, in 1962, I joined a club and found quite a few people who knew more than I did and were willing to help me. Of course, some were jerks, too, but you can sort them out.
Good luck and have fun.