Default [Q] Deleted OS, Odin Fails, Computer won't recognize phone

I have spent days searching for solutions and everything I have tried failed.

I thought I did a factory restore but somehow deleted the entire operating system. I tried flashing an official ROM via Odin but it failed (I know it previously worked), and my PC won't recognize the phone. I do have a custom recovery, TWRP, but the backup was on a different custom recovery and I somehow got the phone to start into the ClockworkMod (?). Any ideas? I have researched extensively and have found nothing. Kies won't even recognize my phone.

I also cannot get the phone's drivers to install on my computer, and I have reinstalled them multiple times.

Can anyone help me? I feel like I've wasted $400 on a phone that is now useless (I did buy it refurbished but also bought a third-party warranty, and accessories so it added up fast.)