stool consistency !! Help!!

I have been anal fissure for almost an year now. I haven’t been able to get the right stool consistency no matter what i try. Either its soft in start and loose in the end or soft but bulky which stretches the fissure.
Lately i noticed that if stool is bulky but soft and still it stretches the fissure i feel much less pain as compared to when i end up with loose part of stool in the end.
I was avoiding stretching the area for months and thought maybe still bit loose stool at end is fine but I think i was doing it wrong?
Also if the area keeps getting stretched how would it heal?
Please advise.

I have been taking miralax 1 dosage daily, tried different timings, different dosages but always ended up the same. Lately started introducing more fiber very slowly and seeing the stool is better in terms of not being so loose but its definitely stretching the area little bit and the wound is still open not fully closed.

How do u all manage? How is your stool consistency? Do you feel stretching too? Is it normal?