<human>: I've found my dream internship and have three days to submit my application. I'm on draft #2 for my cover letter and feel like scrunching it up and restarting (again) - the reason is that I have so many things to say to show them my genuine interest in the position (courses I've gotten great marks in, my work experiences, my volunteering/student club experiences, and on top of that I have my extracurricular stuff e.g. sports, exchange program), but find myself going overboard with detail. What should I do? More detail, or less detail? I want to impress them with a concise letter which invites them to seek more info from my resume, but I also want to highlight my qualities  and experiences which I think make me a perfect fit - and there are many things I could say to convince them of this! (Not trying to come across as a brag, it's true, I've done lots of things at college to prepare me for this type of opportunity and now I'm having trouble fitting them all in.)

Sorry for the rush of words, I'm just so excited about this!

Can you provide a brief overview of the text?
<bot>: dream internship is before me, I have too much to say; how much info is too much for the cover letter?