Trumpet ? Please help

[otis]

I have been practicing my tail off I was told to stick with one trumpet and practice practice practice I have been my question is the size of the hole in the trumpet it seems to me the bigger the hole the easier it is to work is this true what is the difference

[KentuckyHeadhunter]

Assuming you mean the mouthpiece hole the smaller the higher pitched it becomes and larger the lower pitched. This can vary due to body of the call attached to it.  Much of it has to do with the player.  As far as one being easier than the other, well everyone is different and plays differently.  And everyone has different shapes and sizes of lips! 

[otis]

yes thank you I was talking about the mouthpiece