Instead of buying a new (to you) camera, set another goal first? Maybe put together a book, using blurb or some other on-line company. Or make a slide show, set to... wait for it... music! Put it on youtube and send people to it. Well just ideas.
Camera gear is appealing. And you'll get lots of support to indulge in buying new this and new that. But let the art drive this. If you knew someone who had been playing guitar for six months and they told you that they had $30,000 of guitars, would you be impressed or dismayed? I think I said this before in this thread- the camera will find you when you have a reason to be using it.
Now having given you a reason to not buy anything at the moment, I'll let you in on my secret: great cameras *will* make you a better photographer. Or they will make the process of photographing so smooth and pleasant that any skills you have will be manifest. I bet you have guitars like that, which practically play themselves? I did photography for a decade starting in my teens, then moved away from it. I came back to it over a decade ago, and have been through maybe fifteen cameras since then. 6 digital ones, a bunch of film cameras. When I got back to film, I quickly returned to my old favorite, the TLR. I went through four different cameras to get to the one I use now, a Rolleiflex 2.8C Xenotar. After a couple of years using it, I have no interest in getting another TLR, and when I go shoot with it, well, it's like hanging out with an old friend where everything is smooth and easy.
And maybe I shouldn't tell you this, but a few months ago I bought a Leica M3. I actually bought a Leica CL first since I had one in my twenties. But there wasn't anything special going on, I had a chance to play with an M3, and was reminded of a brief period in my early twenties when I used a friend's M3. Maybe you have an old girlfriend or fling like this, someone that you knew briefly but just always stayed in your head decades later? Well, that friend's M3 was like that, and I figured it was time. And like that girl decades ago, the M3 is special for me, where every move is met with the right response.
Well, still, learn your scales first. Don't be that dork with $30,000 of guitars who can't play. Rolleiflexes, Leicas- the pinnacle of their niches. There are lots of niches out there, though, and reasons for people to use all the variety of cameras that exist.
The Nikon FE is a great camera for its niche, by the way. Your father had good taste in cameras.