I'm going to offer you what may be uncomfortable advice, but it comes from my own experience with Nikon cameras.
I suggest returning your D5500 and lenses and picking up a D7000 on CraigsList. Here's why I say that:
My first camera was a D5100. I really liked it, but quickly realized that I needed better access to the image controls than it offered me, and MORE IMPORTANTLY the D5100 lacked an in-body focus motor that will enable it to drive the autofocus on Nikon's older AF and AF-D lines of autofocus lenses. I quickly returned it and ponied up some extra dough for the D7000, and I do not regret it at all.
The D5500 features Nikon's new AF-P phase detect focus technology -- and it is very good -- but you will need to buy specifically AF-P class lenses to work with it. Those lenses are expensive. In fact, Nikon's D40, D50, D60, D3XXX and D5XXX models of camera bodies require at LEAST AF-S lenses or in some cases AF-P lenses to autofocus, because they do not have focus motors built-in to the camera body to drive the AF and AF-D lenses.
As an amateur, I found it much cheaper and easier to get into some professional quality lenses if I was able to go with AF and AF-D lenses instead of the newer AF-S lenses. Yes, AF-S and AF-P technologies are superior. They are faster and quieter than AF and AF-D lenses. They are also much more costly. The AF-D lenses are optically equal to current AF-S and AF-P lenses (generally speaking, that is. Some are a little better and some are a little worse in each class, on a case-by-case basis). You can get just as high quality images with the older lenses, they will just cost you less if your camera can autofocus with them.
Also, cameras like the D7XXX that have the in-body focus motor are still compatible with AF-S and AF-P lenses, so this is about backward-compatibility. There's not future compatibility issues at present. As far as I understand, AF-P and certainly AF-S lenses will work with all Nikon camera bodies from the D40 and up. The AF-P just won't be able to leverage the phase-detect focusing if the camera body does not support it. (I could be wrong about AF-P. It may not work UNLESS the camera body supports it. I'm not certain)
Finally, this really says nothing about the actual QUALITY of your camera, however. The D5500 is a fine camera, and it is particularly well-suited to shooting video. If that's your bag, then it will work excellently. Plenty of people buy the D5500 and are quite happy with it. Just be aware of what the future holds for you when you start to shop for better lenses.