i find very difficult to get notes higher than G above middle C, how can i do it?
my tone is horrible at the moment, i haven't started lessons so i know i shouldn't go that far yet but want to do something before lessons.
i got my trumpet yesterday and i really enjoy playing!!! such a cool instrument!!!

Don't even try for the present. Wait until it's easy.

For tone, play lots of long notes in the bottom octave and a half (i.e up to C space), using plenty of air.
For range, play octave slurs up and down, e.g. starting on G below middle C, GgGgG; work your way up to cc'cc'c (i.e. C space as the top note), and then go down again. When you can do these with very little pressure on the top note (just enough to seal the mouthpiece to the lips without leaks) you can extend the range upward. Eventually, you will find that top notes just need a more smilling embouchure, not pressure.

Exactly right kenm! Playing a brass instrument requires lots of patience.

If you only got the instrument yesterday then you shouldn't really be trying to get anything above a G just yet. It is much more important to develop a consistently good embouchure position and good tone. Are you "buzzing" or have you just picked the instrument up and blown?

This is absolutely right. The only way to become better (whether in terms of range or tone) is to practice. It will probably take several years before you are satisfied with either your range or tone, maybe longer. Long tones will help your tone, and make sure to blow lots of air, not just barely enough to make a sound. Also, buzzing without a mouthpiece is a great way to help your embouchure. Start by buzzing into the mouthpiece only - with no instrument attached. Slowly pull the mouthpiece away from your mouth while still buzzing. Eventually, you will be able to buzz with the correct embouchure with no mouthpiece at all. Buzzing without a mouthpiece is a great way to practice, warm up, or improve stamina at times when you can't practice, like in the car. When you are able to buzz without a mouthpiece, try to tighten your embouchure to make the buzz higher, then loosen to make it lower. I can buzz almost two octaves without a mouthpiece.

All the above, and a very good book (i reccomend it in every other post) is "How Brass Players Do It"

how longer warm up do you do??.......a good long warm up that builds up slowly is essential for reaching notes in the higher register. try playing long note scales....starting on low c for an octove up adn down....then low c up to the d above middle c (in treble clef terms!).....and so on raising it by one note each time. also rememer to use lots and lots or air......................have you had any other experience of playing a brass instrument??????????

Again, I woul like to stress the need for patience and perservence. PLEASE do not try to extend anywhere near an ocatve just yet - the setting of the embouchure requires time and strengthening of the muscles. THIS CANNNOT BE DONE OVERNIGHT! No matter how tempting it may be to give those top notes a go because you can sometimes "squeeze one out" it's not worth it! Just hold fire for a while and makes sure that your muscles in your lip are ready. Remember to buzz DAILY even if you are not able to connect with the instrument - there is never a day that goes by that you can't do some sort of practice (unless of course you have expired!! Hehehe!)

Have a very merry crimbo - don't work TOO hard!

K