I play this role every day...what if...?

So...every day at school I am smiling,laughing,i help others,if someone haves a problem they come at me,all my friends and teachers would describe me as a lovely,dreamy,beautiful,happy person.And when I come home,the only one who is happy is my dog.Than everyone ignores me and ...and i am just learning.and everyone thinks about me like i am a big deal.Yes' maybe i think too much and my imagination is huge,but i don't have a lot of friends and my family is ignoring me.i feel like i give all the love i never had to everyone.is that the reason i make everyone happy?and the reason why i don't want anyone to be sad around me?because i don't want them to be like..me?