STOP before you do any more to it. A stik can benefit from anhedral and actually be a better flying plane. I have seen a few done this way deliberately. There were several articles and photos in the old RC Reports mag about it. (That's the magazine that scammed a bunch of people like me when they folded up with the money some of us had just paid to renew our subscriptions).
It might look a little strange but fly even better than the regular stik.
Fred