Did you flashed the TWRP for your device? Because if you have ICS bootloader, the JB recovery won't work. And if you have JB bl, the ICS version won't work, too. Which bootloader version you have?
Anyway, if you can boot into the system, enter the settings and somwhere between the settings you can find a factory reset option. I don't know, under which menu, because it's different in every Android version. But serch for it in the settings, and you will find it. If you want just a factory reset, it will be enough. But if you want to install a custom rom or a mod, you will need a 100% working recovery.