We do not study Fischer for his openings but to enter into his spirit of pure logical simplicity.
I used to play the Torre as a back-up weapon alongside the Queen's Gambit, but eventually I grew into mainline 1.d4 openings as I became stronger. I liked playing through Fischer's game as a child, but I always shied away from the Najdorf, although I started playing the King's Indian. After I decided to the play the Najdorf as an adult, I soon became a National Master in a little over three months. Go figure. It's nice to have a strategically consistent opening repertoire, but I usually encourage my students not to limit their potential with a narrow range of systems (especially if they have higher ambitions). I've often found that once I start playing the opening I really want to play despite worries of theoretical burden, I am nearly always pleasantly surprised.
I've always thought that the biggest asset to improving isn't necessarily just a structured plan, but more so the diligence, and desire that you have right now to improve. I'm sure there are chess sources out there, whether it be books, online, videos or otherwise that aren't very educational according to your level, but I bet there is still something to be learned from most of them. Keep at it, keep absorbing things, and keep the fire going. I'm sure opinions differ, but in my opinion, don't spend time designing a structured plan, you could be spending that time learning and picking up new things, just from the desire to be better and for the love of chess. The fire to improve and to learn new things comes and goes for a lot of us chess diehards, and it's best to make use of it while it's there