male birds get very noisy just like my yeye, wont stop screeching and chirping and singing everyday!!
it means that he is happy and lively, i would worry more if a bird is quiet and inactive..
you should be happy..
getting pissed off is natural since i guess its your first time to have a budgie that is very noisy..
you'll love his noise soon..
oh and i guess it may get annoying if your reviewing your notes for upcoming test etc. but you can cover the cage to make him a bit calm and stop chirping out loud..
or make a weird sound to make them stop and listen..