I think i might be bisexual!!! helpp pleasee?

okay im 15 years old and i always masterbated to girls and had crushes on girls and i flirt with girls and about 2 months ago is the worst time ever.. i have anexitey. so about 2 months ago i was wondering if i was gay or bi and i just kept worrying about it and im not the same anymore . i cant forget about it. i would never ever go out with a guy or have sex with them because it jest seems weried and thats not me but i can tell if guys are attractioning then other but girls are wayy better and i was just wondering am i gonna slowly turn gay because of this anexitey? please answere