That would be great except I already made a character and it's not a cleric. So in other words too bad so sad, you F'd up now you have to start all over? well that sucks ass.
You're literally like 2 minutes into the game when you get to Shadowheart, so I fail to see where the problem is?
And again, you don't need a cleric to play this game? So how have you F'd up?
There is nothing at all stopping you from continuing to play the game.
If you think this is an F up, then just wait until you start failing rolls and making the wrong decisions in all the rest of the game.
Or wait, why not just reload your last autosave before you met her? This thread is entirely a non issue.