I always seem a little bit lower then the note i'm supposed to be hitting wh

Question:it depends on where the note comes in the phrase, and how you approach it. some final notes often go flat because you are slowly running out of air. ( breathe a little more often)
some final notes go flat because it's the old runner-slowing-down-before-crossing-the-... syndrome. ( keep singing full out until the end of the phrase) sometimes it has to do with the dynamics ( piano doens't mean twisting your body and breath support into knots in order to sing quietly. It just means holding back the air a little while staying intent)
sometimes the expression is wrong. If it's a sad song, people unconsciously let their faces go droopy.( keep a friendly, alert expression going)
most often it's a question of hearing the sound correctly, and using the soft and hard palates in the mouth as fine-tuning knobs ( like on a radio-ever see one of those?) this takes some attention and training, to keep the sensation of the sound flowing over these two surfaces while you sing, and not letting the sound stream slop down onto the surface of your tongue.

Best Answer - Chosen by Asker: it depends on where the note comes in the phrase, and how you approach it. some final notes often go flat because you are slowly running out of air. ( breathe a little more often)
some final notes go flat because it's the old runner-slowing-down-before-crossing-the-... syndrome. ( keep singing full out until the end of the phrase) sometimes it has to do with the dynamics ( piano doens't mean twisting your body and breath support into knots in order to sing quietly. It just means holding back the air a little while staying intent)
sometimes the expression is wrong. If it's a sad song, people unconsciously let their faces go droopy.( keep a friendly, alert expression going)
most often it's a question of hearing the sound correctly, and using the soft and hard palates in the mouth as fine-tuning knobs ( like on a radio-ever see one of those?) this takes some attention and training, to keep the sensation of the sound flowing over these two surfaces while you sing, and not letting the sound stream slop down onto the surface of your tongue.

Sing in head voice. You are flat when you are a bit lower than the note and if you get proper head voice training it teaches you to come down onto the note and it protects you from being flat. Belters sing flat more that head voice singers, so think about what voice you are in.

if you are having trouble hitting the high notes, maybe you should try to breathe for higher notes

try standing on a chair!...

I know this sounds corny, but my vocal teachers tell me to do this all the time.
Make your face as "long" as possible by pulling up your eyebreows and opening your mouth very wide.
Also, move your hand up in a swooping motion while you sing.

Hope that helps!

If you think you are going to be flat on high notes, slur your note so that you hit the right tone just like bending the note on a guitar. But you do this in a sneaky way or should i say, a subtle way.