Trying to stay positive? Is surgery inevitable?

Hey guys I’m on week 3 dealing with this. Im a 30 year old Male. My anal fissure happened from passing a really large stool. Probably the biggest one in my life. It’s on the left side of my anal cavity right before the stool gets released. Week 1 was the worst, just alot of pain and discomfort. Week 2 I went to a gastro and he prescribed me a treatment plan. I did miralax every other day half dose (sensitive to the laxative) and after a week I felt pretty much better until I passed a slightly hard stool to fast out of laziness and reggravated the fissure. Wheras I felt the glass like ripping feeling in the area of concern and the dull pain lasted for the day. I decided to go on the full treatment plan and take miralax everyday and link it with the topical treatment, Diltiazem/Lidocaine.

The thing is I’m reading on this form is that if it lasts for more than 4-6 weeks then its chronic and I can never heal without surgical intervention. I won’t mind the botox but I really don’t want to go the LIS route. 

Blood during fresh tears is minimal, only a small spot of bright red blood on the toilet paper if I dig into my anus. Standard wipes have no blood. 

The pain itself is discomforting but not terrible, after I retore my fissure the pain was more annoying than painful. And after taking the topical cream and miralax last night I was able to pass stool, (tenderness and discomfort in the area but no glass like ripping feeling) and I just feel tenderness today but no pain. 

Is my fissure chronic? And is it possible I can heal my fissure without surgical intervention.