Please answer my questions I really need help!!!

Do you guys believe that kids are getting influenced by homosexuality. I ask this question BC a friend of mine always had a thing for boys and then one day out of the blue she tells me she is bisexual, by the way she is 13. And do guys believe that if she doesn't want to be bisexual can God heal her from liking the same sex BC I'm a big believer in God and I really need to know if He can heal her if she really wanted to be? I would answer your replys but I want to stay anonymous. Not to be rude or anything but I would really like it if the people who believe being gay is a sin or not right could only answer this for me please I would really appreciate it. And if you have any stories about someone overcoming being gay by praying and getting to know the Lord better I would also really appreciate that to. What are the steps my friend can take to rid herself of being bisexual?