Question for Christian church people! mostly Baptist.?

Ok so im a Christian. but im doubting things now. if God "loves" me so much then why did he give me this life? i dnt have a good life. my family hates me, no friends,The only true friend i had moved and i havnt seen her in 2 years, bad grades, the only thing im good at is creativity! im not real healthy. y did he give me this life if he LOVES me sooo much??? and another thing, i go to church . . . or i used to . . . and the people were such JERKS!!!! I like rock n roll but i aint no devil worshiper! and everyone would critisice me and talk bad about me! they also didnt like that i wear a lot of black and that im outspoken. arent all u baptist christians supposed to be all nice and stuff but from what i see your just plan rude and critical! why do you people do this? i stopped going 2 church cuz everyone hates me ther cuz i supposingly have the pentagram tattoed on my ***! oh and im only 14 so come on! y do u do this and y if God loves me did he make me stupid and worthless?