life drawing

I have decided i need to work on my drawing skills so in order to do that i decided to take some life drawing classes. This will help me learn human proportions and like of action and a lot of things that are necessary to draw good characters. 
I found the first session very frustrating especially the 1 minute drawings. this is definitely not my forte and i got really annoyed with myself. As the drawings got longer I was getting increasingly frustrated as that should make things easier but i felt like nothing was going right and i didn't know what to do! In the end i decided to stop drawing the whole body and concentrate on certain aspects instead. 
I feel i need A LOT more practice on this. Unfortunately the sessions have stopped now for the term but i will definitely be going back next year as i think it will be very useful!! I will also practice figure drawing and general drawing skills over summer.