Welcome Sweetpea.
I'm sorry for your diagnosis, like a lot of us, but you have definitely come to the best forum around.
The people here and the valuable information and advise, is just amazing. I have learned so much, more then I have ever.
Me thinks more then my Gastrologist Doctor..lol.
I'm glad your doing all the right things, Check out some of the post's regarding Magnesium.
My Doctor wanted me off Colace (habit forming) and twice a week at night take 400 mg of Magnesium(pill form), I just discovered that there is a liquid form that is gentler for people with colon issues, like my IBS. Going to look into that.
Also check out one of my post's regarding
Placement of fibre Eat your Soluble first(softer foods) then follow with a insoluble fibre food(acts like a sweeper).
Makes sense, what goes in first will come out first, My pharmacist told me about this method.
Keep tuned, so many Fissure Fighters will come and welcome you with open arms, and you will heal. I am healed/healing, but some days it's like 5 steps forward and two steps back.
I guess because we are so aware of our bums, its itching, soreness, burning, every little twitch and ping...lol.
Take care and have a great evening, sleep tite and don't let the fissure bug bite.

Soon your BM will be as smooth as silk, no matter how your poop come's out..lol.