Do you have Resident Evil 4: Wii Edition?
That's exactly what you're getting yourself into with any Zelda game.. something you're gonna need alot of help with. I have Zelda TP but I haven't played it that much. I know from Ocarina of Time and Majora's Mask just how Zelda games are.. but that's one of the cool things IMO, it's tough.
You can probably tell that I'm a shooter guy from my avatar.. if you like shooters, the 3 shooters I own and like on the Wii are Red Steel, Far Cry Vengence, and Resident Evil 4. If you trade in Zelda TP (which I don't see why you would!) you'd probably have enough trade-in credit to get Far Cry or RE4 (since you already have RS). If you don't have RE4, then I would definitely get that.