Baby sleep!

My daughter is 6 months and 2 days. She’s got two teeth and just learned to roll over from back to belly. We implemented a sleep training plan at 5 months and she was doing well only waking once a night. That alone was a HUGE improvement from before. Since the day she turned 6 months, she has been waking every 2 hours again. Could be the teething but the baby Tylenol doesn’t help and I don’t want to give it to her every night if at all. Also, she use to sleep on her side but now that she’s learned to roll she immediately flips to her belly and gets pissed. She still doesn’t know how to roll from belly to back so she’s just kinda stuck there until I roll her back over. I know there is a regression and growth spurt at this age and she has been eating SO much that I’ve had to supplement with formula (which she actually loves and it agrees with her tummy). Any advice? Sincerely, an exhausted mommy 🥲