I am similar to you....left-sided, constipated. Had never really gotten into remission save for a few weeks at a time, even on a restricted diet (though the restricted diet took care of most of my more debilitating symptoms). At one point early on, I was taking Mesalamine enemas, but I stopped after about
a month because it really didn't seem to be doing anything and I was getting real
tired of that being my nightly ritual, and my GI didn't press the issue. Cut to this last summer and a new GI, and she puts me back on the enemas for a minimum
of 3 months. I'm actually still on them, though only every other night (in between I still have to take a Mesalamine suppository) mostly because I'm still trying to heal a fissure I've basically had for a year and a half.
But this has been the longest stretch of normal bowel movements (no blood, no mucous) I've had since I was diagnosed. The trick has obviously been sticking with the enemas for the full initial 3 months. I'd say I started to see a noticeable difference after the first two. And I've even had one or two bouts of explosive movements (due to eating some things I shouldn't have) during that time and I've managed to stay steady. So, as others are saying, I would definitely recommend seeing through an enema course for at least a few months. I also went heavy on the Turmeric at her request (like, 2000mg a night).
Of course, I'm a little terrified of both either eventually tapering off the enemas or having to stay on them forever, but right now I'm just happy to be mostly stable.
You might also want to skip raw salad for that duration. Raw salad ruined
me when I was flaring.
p.s. You don't suck. UC sucks. It's such a moving target and the fact that both symptoms and remedies are so idiosynchratic REALLY doesn't help things much. You are not alone in that feeling. Be strong!