I am quite the idiot when it comes to custom roms and such, so i apologize in advance for my lack of knowledge. Anyways, I had CM13 for quite some time before this and was using twrp. In my adventures of installing my first custom rom I had thought I needed to re-lock my boot loader, so because of this i no longer has s-off. I used sunshine to achieve s-off in the first place and needed to go back to a stock rom to repeat the process. along with this I had gps problems on my custom rom and had read that i need to go back to stock. I looked on the internet to find a twrp flash able rom, that would do such. I was unaware that this would get rid of my custom recovery (again, sorry for my stupidity) and now my screen is stuck on black when I try to boot up the phone and I am incapable of reverting back to my custom rom, and as I noted before, I have a locked boot loader. Is this black screen just a part of the boot up process or should I try some different measures to return back to a functional state? Your help is greatly appreciated here, and again, I'm sorry for my inexperience.
Thank You for the help!
P.S. I have the Verizon variant.