It is well to recognize that when you start on a meditation practice, you are entering a totally different dimension of reality. Normally in life we put a great deal of effort into achieving things, and there is a lot of struggle involved, whereas meditation is just the opposite, it is a break from how we normally operate.
Meditation is simply a question of being, of melting, like a piece of butter left in the sun.
You just quietly sit, your body still, your speech silent, your mind at ease, and allow thoughts to come and go, without letting them play havoc on you. If you need something to do, then watch the breathing. This is a very simple process. When you are breathing out, know that you are breathing out. When you breath in, know that you are breathing in, without supplying any kind of extra commentary or internalized mental gossip, but just identifying with the breath.