I don't think you should limit yourself to what you should / shouldn't do in your lucids.
You can do everything you want, you just need to have the right attitude.
About being over excited- Let me tell you something, everything in lucid dream is exciting, you can even call flying quite basic since it's so common.
You should control your feelings, but it comes with practice, you shouldn't set yourself boundaries.
Cheers,
Harelori