Asalamulaikum Bro
Remember that ur not the only one, n that so many ppl come to islam everysingle day n some dnt even have access to a masjid or muslim ppl etc, u sed ur from notts and alhumdulillah there are masjids n muslims all around. I suggest u spend as much time as u can around other muslims, do ur iftari in the masjid, try n put urself in touch with other muslims and new muslims. on eid go for eid salah n inshallah ur friends and brothers from the masjid will invite u to their house to eat n chill out, let the imam no u have no muslim family to spend eid with.
My husband is also a revert n he told me that ramadhan n eid can be lonely n he did feel lonely at times however wen he went to the masjid on eid every one was inviting him to their house n he had tonnes n tonnes of food because every one on eid just eats loads n loads n loads n literaly he had to push their hands away from their plates when they kept filling it in! lol
asian ppl can be like that, so inshallah dnt worry and remember that in the islamic culture when a person invites u to his house to eat they actually mean it, so dnt feel overwhelmed wen u get so many invites. as in the english culture wen ppl say come down to my house they tend to mean, ring me to make an appointment and even then only come for five mins etc.
also, im sure ur family will make it a special day for u n perhaps u can go out n celebrate it with them which wud be nice. also get them presents so they feel part of it even tho they aint muslims.
hope i helped a little inshallah.
n dnt forget im sure half of li will be here on eid day with nothing better to do so u can celebrate with them aswell!