first off im a teenage guy, and my range isn't that good, and that's what this is about. i want to know how to expand my range so that i can sing along when i play my guitar. i can sing well sometimes, but sometimes i can't even sing along to a whole scale when im playing my guitar. i don't think i'm gonna do any vocal classes/lessons because i don't wanna have to subject myself to my parents thinking im gay or something, i just won't do lessons. any tips or websites with videos that i can go to would be very much appreciated

just... find the key that fits your vocal range the best...
and... then push your limits ... up and down.