Very sorry to hear about your injuries.
‘From your descriptions of the sound you like, see if you can find some Beyerdynamic T2 headphones to listen to. They among the most unique and natural sounding that I own / heard. While I listen to my Focal Utopia and Sennheiser 800s the most, because in absolute terms they simply out perform everything else. The Sennheiser are not trebly… in my system… they used to be in earlier incarnations of my system.
Also, consider not thinking about spending any money on interconnects… get the very best components you can. Then listen and enjoy… and at some point your finances can recover and then you can think about interconnects… as an upgrade and treat to really optimize your system.
Also, I am sure most folks found this true. It is really hard to do a one time purchase and done. It is hard not to learn so much from your initial repurchase that you want to trade or try different stuff to zero in on the sound you really want. But you have to start somewhere and the higher you shoot the less turnover you have.
I own or (owned) top level Denons, Sennheiser, Focal, UltaSonde Edition 8, LCD2, ADK, Grado… and some others. Grado can be relaxing. Denon (D9000) require massive power to get bass under control… then they are amazing.