#1
Just started a couple of weeks ago and down ward strumming of chords is ok but upwards i`m digging the pick in is it just practice? any suggestions would be great
#3
you don't need to pick all the strings, just the first 2 or 3.

you should also focus on ghost strumming since you are a beginner. - basically you keep the up and down motion going to maintain the rhythm.

ie. if you are playing 2 half note chords in a four beat measure, your strum still goes up and down 4 times.
SRV R.I.P.
#4
Don't grip the pick so tightly. It should be a nestled scale with the fulcrum being where the pick touches your skin.