to really memorize the chords while going through GF1 and 2? I just started about a month ago and doing pretty well so far....but....was wondering if I really need to know the chords now or can I just learn them as I progress?

Also, 2 chords have given me some trouble (as most people have experienced appearently, lol) the A major and F major. I just could not get that A major the way it was shown...so I decided to switch it up and place my fingers as follows: index on G-string, middle on D-string and ring on B-string. Staggering like this makes it MUCH easier to fit all my fingers in the fret. Is this an acceptable alternative? Or am I setting myself up for difficulty later by doing this? No problems so far switching chords with this finger position.

Still working on the F major and REALLY not getting it yet, just cant get those strings to ring clear at the same time......hopefully get it eventually.

Thanks for thoughts in advance...