I'm not sure what sort of bow you have, but there are some extremely compact bows on the market compared to my old early 90s Hoyt. I don't shoot mine enough lately to justify a new bow, just looked at 'em.
I have a PSE "kingfisher" recurve, 50 lbs. Recurves are far harder to shoot even with sights. Stick with the compound unless you're a traditionalist. The PSE is lighter, but it's a bit longer than even my old Hoyt. I like shooting it, a challenge, and I prefer a recurve for bow fishing (quicker) which is one reason I bought it.
I also love black powder, shot my first with BP this past season. I wanna take one with my Hawken while I still have enough eyesight for irons. My eyesight ain't getting any better with age and it never has been that great, but I can still hit with irons. The BP stuff limits me about as much as handgun hunting, about 100 yards max. Well, I can shoot to 200 with my Contender if I have a solid enough rest. Black powder, though, is a HOOT at the range. I just love shooting 'em. The sulfur gets in your blood, I guess. When that 385 grain Hornady Great Plains Minie ball hits at 100 yards, it makes a THUMP! It kills as dead as my 7 mag and you can eat right up to the hole.