how to improve high notes in my singing?

Check out these websites for online singing lessons:

singingsuccessonline.com
singingvoicelessons.com
expertvillage.com/voice-lessons

E-mail me if you have any more questions.

Try these exercises, I use them every day in choir and voice lessons and I am a classically-trained Lyric Coloratura Soprano, so I can sing pretty high.

Breathing:

Place your hands on your diaphragm and breathe out counting to four and breathe in counting to four. Do the same for three, two, then one. This will help you sustain longer notes with a shorter amount of breath. If you don't feel slight pressure from your stomach pushing against your hands, you aren't doing this correctly.

Place your hands on your rib cage and breathe out counting 1 (breathe) 1, 2 (breathe) 1, 2, 3 (breathe)...to 10. By doing this you recognize where your breath support is coming from. If your rib cage does not expand, you are probably using your throat too much and you could damage your voice.

Diction:

Sing scales Do Re Mi...in your comfortable range to a piano in ascending and descending octaves. Over time as your voice gets stronger, you'll be able to stretch your notes on either side of the piano.

Of course La la la always works.

Sing silly words like zingamomma zingamomma zingamomma zingamomma zing zing zing to a piano to sharpen your consonants.

Ah-leh-eh-loo-uh and Mee-meh-maw-moh-moo for vowels.

Humming in the morning also helps warm up the voice.

Singing high notes is easily done by lifting your soft palet and floating the notes, meaning you shouldn't belt them. That causes permanent damage to the vocal folds. Sopranos typical create an arch by smiling at a pitch on the top line (F). The sound usually travels from the diaphrgam, up the throat, and over the arch through the front of the nasal cavity. Just listen to any of Mariah Carey's earlier work.

Always remember to warm up properly 5-10 minutes before singing. Drink lots of water (at room temperature as to not shock nor relax your vocal cords too much) and keep good posture so air can flow through your body and help you sustain stronger notes. Stretch your arms and neck while warming up to release tension in your upper body. Rest your voice for a few days when you are ill or tired. Be confident and have fun! I hope I helped! Best of luck!

Open your mouth good. this is: purely horizontally and under no circumstances sideways. do never stress your vocal cords, or you will wreck them. And maximum heavily: practice with a extreme instructor who knows what they are doing and would handbook you to make the suited of your organic voice.

This is a good online resource I recommend if you want to become a better singer http://www.goobypls.com/r/rd.asp?gid=295
Good Bye

Join in the singing lesson
singing just like playing the piano you must know key sound for ex:(C,D,E,F,G,A,B,C.......)AND minor is (C,B,A,G,F,E,D,C)