Been there and can sympathise. After a couple of weeks you literally wonder if this is your entire life now and if you want to live like it.

The worst bit though was how I got the fissure. I had a nearly completely obstructed anus. The human body will clear that if you like it or not, with or without medical intervention and it will do damage on the way out. Ugh.

Eat more fibre and drink more water!