Luka,
I shared a house with a girl who suffered Shy Bowel to such an extent that she wouldn't even go with anyone else in the house!! so I do get it for sure and how it must be for you. Actually it's horrible, because it restricts your freedom to go out and relax completely as there's always a bit of you worrying about when you need to go for a BM next. It's such a shame you can't get help with this because you will feel so liberated if you know you can just go out and poop when you need to anytime, anyplace. I know just from my experience of having a fissure and feeling that I could only largely deal with it from home and feeling terrified of getting caught out in public and having to poop and how I was going to manage the clean-up etc. etc. BUT tbh (and I guess largely) because I am better, I really don't care! and that in itself has made me feel so much freer these days. I don't like public toilets but once in that cubicle, I think "What the hell........no one knows me, no one can see me - maybe the person next to me has the very same issue!" and that's always been a good technique for me! Then you hear the door bang and they're gone anyway........
I hope you truly work through this one xx