Ok I just want to start off by saying that I'm not yelling or freaking out on you, I don't think your stupid because everyone makes mistakes we just need to figure out how this mistake is going to be resolved.Ok well first off I'd just like to say that glueing an anemone is not a good idea at all, it likes to move around and find a place to call home that's perfect for your individual anemone. And second I was reading your post and I get the feeling that you think that an anemone is a piece of coral, which is not true but a common misconception, it doesn't have polyps it had tentacles and it is an invertebrate, it moves around using it's foot kinda like a mollusk but it's not a mollusk it just kinda moves like one, and the tentacles don't always extend, a lot of the times they do stay bubbles, my suggestion would be not to have an anemone in a reef tank if your a beginner because of the fact that it likes to move around and can sting your corals even veterans of the hobby like to stay away from anemones with corals in the same tank. But now that I've given you brief knowledge about anemones we need to figure out what your going to do about this. Ok so if you keep the anemone glued to a rock I'm 95% certain that it's going to die unless you go online and you learn the signs of a healthy and happy anemone and you move the rock every single time it doesn't seem happy which even for a veteran hobbiest would be difficult and even if you did that most likely you would not be able to keep up with the demands of the anemone because it can move and find a new spot many times a day. The second option i can come up with is to remove the anemone as carefully and I mean as carefully as possible because if you tear it's foot (the body) even a little bit it'll most likely die because it's hard to even get a non-glued anemone off a rock. But in the end I'm sorry to say, you are most likely going to end up with a dead anemone which is sad and stinks for you because I know anemones can be costly but this is definitely a learning experience for you