There are a lot of feelings that come up with publishing a book. You’ll want to create a support system to work through them.
I’ve heard several published authors recommend having a therapist on hand during and after your book launch.
You can hear Cait Flander’s talk about this on Claire Venus’ podcast Sparkle on Substack. Cait also helpfully reflects on how you don’t have to say yes to every opportunity and how important it is to say “no” and protect your energies during launch.