[Q] Super Stumped topic

OK so i rooted my phone along time ago and it been running smoothly. I've used different roms that worked fine no issue well i recently tried a new rom it ran smoothly for about 2 weeks, then i tried rebooting it and it got stuck on the Samsung galaxy s III. i reloaded the rom it worked until i rebooted then it got stuck on the same screen again. Well 8 reloads and 3 roms later its still doing the same smh any suggestions if so it will be greatly appreciated.thanks