Welcome!

I think Big hit upon some very good points.

Work on form before accuracy. Aiming is really the easy part. Getting the arrow to fly stright is the hard part and it has to do with form more then anything else.

Just a couple things that I would consider important to a beginner:

Keep an open stance.
Bring the arrow to the anchor, never bring the face to the arrow.
Don't think about the release, think about never letting up the tensionon the string. The anchor is just a slowing down place.
A rigid bow arm comes from good alignment.
Release tension from both hands before pulling back.
Keep a deep grip.
Try not to pluck the string (hand comes away from face upon release, it's ok to come straight back but not away).
There should be a straight line as looking from above from the tip of the arrow nock and back of elbow.
There should also be a straight line (from above) from the grip point and both shoulders.