I feel so alone

Hi guys im 18 years old and i only came out to 2 people, the first one i came out to is accepting me but he doent really care for it either, every time i wanna talk about my lgbt issues hes like "who cares" its making me feel awful, im starting to feel like no one accualy cares for me or what i think about. I try to talk to him about it but he just said to me that im to emotional i dont know what to do