Stress dreams

I'm sure you've all had them, but what helped you stop stressing over the guest count? Because most of our guests will need to travel significantly to come to our wedding, I sent our our STD's now (wedding 8 months out) I am happy with our gust list - like, it's not too many people if everyone shows up. BUT I have suddenly started having these horrid stress dreams that NO ONE shows up, or we only have 20 people (out of 95) and it was so forlorn and empty. THEN I dreamt that everyone showed, and even though I KNOW our venue can accommodate them all, in my dream there were guests stuck out on the beach at tables (and beach chairs LOL) because it was too crowded on the venue patio. I never thought I'd start to get this panicky so early in the wedding planning! HELPA