Default Help After Flashing T-Mobile ROM weird problem

I have been trying to get my phone to work for the past two days and still no success.

I flashed T-Mobile Stock De-Bloated ROM. After that I did the OTA thing and messed up my phone.
I did a bit research on xda and found out the terminal command solution and did that. But now I think messed up big time. My phone will turn on on the same tmobile rom but as soon as it starts it keeps on giving messages like com.android.process has stopped working and many more and i cant get past those messages after boot. My phone basically just starts up and thats it, i just keep on getting those messages. I lost root too and i cant goto download mode wither because it keeps on starting up even when i turn it off.

Any help would be appreciated.