I'm sorry that your family and "friends" are shite. That's very hurtful.
I've been here for 15+ years. Most people assumed that I acquired citizenship when we married and don't understand that it's actually a long and expensive process. When I tell them that it's 5 years, 3-4 applications, and XX,XXX before someone even gets to vote in local elections most are appalled.
I sound as though I'm fresh off the boat and I get asked nearly weekly where I'm from and how I moved here. I think it's idle curiosity and treat it as such though I don't like feeling different, depending on the situation. A significant number of my friends, acquaintances and colleagues weren't born in the UK and when one of us gets citizenship there's always a round of drinks, card, or celebratory thing.
You need new friends immediately! You don't choose family and they can say odd or slightly hurtful things. I absolutely chose my friends and they are wonderful, inclusive and kind people who respect other's points of view and reconsider their own stance when differing opinions come up in conversion. I hope and strive to be as thoughtful and considered as they are.