trying to print enevelopes for invites

and of course my printer is not working and I can't figure it out.

I am so frustrated

Hang in there! I went through that a couple of weeks ago. We bought a photo printer on a great sale, and they came out great! imho.
I handed my MOH and bridesmaid their invites today (avoiding major folding by postman - city dwellers) and they had wonderful things to say.
Keep at it...use test paper though.
And, play with the font size when addressing so they use up a nice size of the front - tip provided by vendor when I picked them up.