Pelvic floor muscles chronic problem.

I follow everything told by doctor still my muscles aren't relaxing. I had undergone kshar sutra & fissure tissue removal surgery 4 months ago. I had been following everything. Still my muscles & spinchter aren't relaxing. & causing incomplete evacuation & cramps. I've undergone almost 4 anal surgeries. I'm still suffering. My body has become weak & lost lot of weight coz of those painful procedures. I really can't undergo another surgery for same. I have other probs & surgeries too.I have no bleeding or discharge.No much pain too. I recently discovered that I had this habbit of half bending/ half squatting while peeing more like bending a little & standing. Since 7 years I have never sat down to pee. I was avoiding UTI & did that. Could that have caused muscle disorientation & tension leading to chronic pain? If yes please guide how to relax again like it used to be 7 years ago. Please🙏 😭