DON'T DO MEDITATION!
When you learn the techniques from various sources, when you learn the different methods of meditations, you start 'doing' the meditation. And more you 'do' meditation, the more you get anxious about everything. You feel the benefits are coming to naught!
YOU ARE UNIQUE. SO YOUR WAY OF MEDITATION HAS TO BE UNIQUE TO SUIT YOU.
So being in meditation, help you to develop your own technique and method which are just appropriate for you.
DON'T DO MEDIATATION, BE IN MEDITATION !!!