SSD Corrupted Help

I have a 120 GB Kingston SSD that i use to boot my computer along with a 1 TB HD. Last week, my computer stopped booting up with the error “reboot and select proper media device.” I’ve tried fumbling around with everything I can but I’m not sure where to go from here. 

I’ve tried:

Changing UEFI settings in BIOS and boot orders, resetting settings, many other UEFI related things

using a bootable USB which got me to the install Windows 10 page but it won’t let me use my hard drive even after I clicked format!! (I don’t care about data loss). There was 900 GB free and 100 in MRS or Reserved Space, whatever that is. 

Should I just order a new SSD, and if so can you suggest which one that would have a booth manager so I can just stick it in and start?