How do I tell my mom I am bisexual

hi u guys I am bisexual since 4th grade nd now I am in 7 grade im 12 yrs old nd I like both genders but
do u think my mom willfind out cause I am a girl but I also dress up like a boy in a way nd shes probaly wondering ..so how do I tell my mom I am bi ?? Plz help me nd if u r my age nd the same it dont matter :D

Well I think you should sit down with your parent and say "I have been bisexual since 4th grade and I thought you should know I prefer men and women" you should say that also. Say " I didn't choose this sexuality god made me like this"