38 weeks 4 days so ready but so afraid!

I am having a scheduled csection Monday and I keep getting pretty bad panick attacks. I have already done this before so I am so unsure why I am freaking out so bad. I have been having panic attacks so bad I get them more than once a day and they get pretty severe to the point where I feel like I can't breathe and my chest hurts. Has anyone else had this problem? I am home alone all day and I have no one to talk to or calm me down. What would I be able to do to calm myself down? Anything? Please!?