Interracial dating advice

I’m white and my boyfriend is black and I’ve already seen his mom on multiple occasions and I’ve met his father once. We’ve been together for about 6 months now and his dad told him invite me to his family gathering on Easter.

I would love to go and meet his large extended family, but I’m so crippling anxious!! I don’t have a problem meeting his family, but I’ve never been around a ‘black family’ and i always see memes about how black families are different and have different ‘customs’

And this is kind of dumb but Whenever I get nervous I don’t really want to eat so if I don’t eat at this event i think it would be seen as rude, so knowing that I will have to eat I know I’ll be physically uncomfortable makes me more nervous

And I’m scared some of them are not going to like me because I’m white

I just keep overthinking, does anyone have any advice? My bf is giving me the option to bale, but I’d feel like I’d be giving up and i do want to meet them eventually, so why put it off?