I keep far too many "irons in the fire" so to speak; I have all the systems currently, Nikon, Canon, Olympus, Fuji, and Pentax, some more invested than others. I even have some Sony Alpha stuff from before they went all-in on mirrorless. All of them, even with modest lens investment, are better than I can get out of them. Gear is almost never the limiting factor. Until then, you'd be better off working to improve technique.
That said, do what you like, do what makes you happiest. That's the key thing. If revamping will get you out shooting more, experimenting more, enjoying photography more, then it's the right ting to do, for you.