Stuck inside twrp, can't get out Help!

Last question I asked was a software issue. Anyway I am stuck in twrp.

I just formatted my phone this time in twrp and it was successful. I then installed my stock/custom rom and it was successful again. Then when I rebooted it to system, it booted back into twrp. I formatted it again. But this one time after the first formatted it said install supersu, so I did it.
Did you try flashing a custom rom again? If not please do. The recovery mode might some how removed your system (my guess). Try flashing some other roms.
Good Luck!