It is absolutely normal to feel so hurt and to hate parts of yourself when others are also not accepting. I identify as a heterosexual but I have many friends who do not and, when they face rejection of their sexual identity on a daily basis, it really hurts them.
Unfortunately, it can be very hard to change someone's views on sexuality. These are often quite ingrained. Instead, it can be easier to first find people who are supportive of you and work from there. Do you have any other friends or family who can be supportive of you?
Also, I would suggest having a look at the contacts and resources detailed on this page: