I like to sing but am afraid to tell people?

I LOOOVVEE to sing! i always do and not to toot my own horn or anything but i kinda think im good. i did my school play and my friends thought i was really weird, they all love sports and stuff. im afraid to tell them that i like to sing and might actually want to make a job out of it one day. but hey will think im super weird. any advice? thank you!