Can I ask my friend to relax and take it easy?
Why would you tell your friend that?
Because that's what he seems to have problems with
I know you're trying to help, but it's not nice to tell people what to do. They may start to feel insecure.
You must have a good time heaps to relax like that.
Don't worry about your friend, you should be worrying about yourself instead. Would someone telling you to relax actually make you relax?