Stressed Out. Elopement -> Wedding

Kasey • I'm 29, bi, married. I wrote here at 25, we talked about family and would be TTC by now but he’s not ready (34 yrs old).
We were planning on eloping because our family is all over the place, and because we are very frugal people.
With some family pressure, we decided instead to have a TINY direct family dinner and city hall.. with 1 simple dress... and donations to charity instead of registry....
And since then, my mom & mom in-law keep adding on people and options!!! Now everything has about doubled; 2 dresses, 21 people instead of 12 most flying in from far away, 2 dinners, bigger private dining room and dancing, a gift registry, guests staying a week instead of 3 days...  and it really overwhelmed me. :(
How do you get used to people trying to shower you with attention? Or a wedding growing bigger that feels out of your control...? I want to be so thankful and greatful, but it's just making me stressed out.
Any advice to calm my nerves?