Once again it amazes me how many on this board will critize other lifestyle choices without knowing a fuck about what they are talking about. But they expect and don't understand how most people think that steroids users are fucked up.
To answer your question, have fun with your mushrooms. Besides trying to work out while on them, they are safe and you will probably be fine the next day.
Part of life is having a good time and with the right people and some mushrooms, you will laugh your ass off. Nothing bad about that. Enjoy.