Even if you have PSC it doesn't mean you're out of the game. I've got PSC, and have been able to keep my liver enzyme levels normal for a few years. (PTL). It doesn't keep the scare from being there (my brother died of it), but it does not keep me from living today. With your enzyme levels normal, I'd not worry too much about it until you experience other liver issues. Now that is also a warning not to abuse the liver with too much alcohol or other junk.
Hope this helps.