Like you, I am somewhat new to the guitar and I have found GT an amazing resource. Willing to bet you will too! As far as the F, well, I've got this nice sized dent in my forehead from smacking my palm againt my head every single time I've missed it!
It's tough but it comes in time. Trust us on that. Take care and play, play, play.
[FONT=Tahoma]"All I can do is be me ... whoever that is". Bob Dylan [/FONT]