Hurt feelings when none of my family is attending my wedding

Been trying my hardest to fight off the pre-wedding blues for our upcoming nuptials with just over a month left. The thing is, my mother recently passed away and after several betrayals from my dad, he's out of my life for good. This alone made me want to elope, but somehow that turned into the agreement that we'd have a "small" gathering to appease my fiances family. In turn, I invited the few cousins, aunts and uncles I have left. One by one, they've been declining the invite to where now nobody that shares my bloodline will be there.


How does one wrestle with feeling like the lone twig standing in my family tree? My four best friends and their respective partners will be there on my side, and the parents of my best friend, maybe a few coworkers; but with every confirmed "no" that I've gotten back, it feels like the tear in my heart is getting bigger and bigger.
On top of that, the HMU artist I was lining up ghosted me over a month ago and I can't find another. Thanks to the depression, my wedding dress is now too snug.