This might help a bit.
There are lots of meditation articles and courses for free on the internet!
But it’s pretty simple. Relax and clear your mind. Don’t fight the thoughts that pop up, try only not to get caught up in them, let them pass by. Whenever you catch yourself wandering, just gently clear your mind again. You can also focus on your breath. It’s that simple. And don’t worry, as you said, we are really unfamiliar with this, so you will feel like you aren’t succeeding at first because your mind will wander 95% of the time 
but I say that simply trying IS meditation…