I recommend you to also read a guide with instructions and a book that describes the benefits of deep states of meditation. Here are a few good books to get you started: How to Meditate: A Practical Guide to Making Friends with Your Mind by Pema Chodron and Meditation for Beginners by
Also, sit longer only if you feel that is too short. Do not force yourself to meditate longer if you are not ready to do that.
Meditation is a life practice and the greatest benefits come when you do not examine the results of your daily practice.
If you have the time, practice breathing exercises before meditation in order to relax your mind. I highly recommend The Nine Purification Breaths.
Meditating with a partner or your loved one can bring great benefits and can improve your practice.
No doubt, early morning hours are the best moments for meditation: you can enjoy the silence, the mind isn’t full of the daily noise yet and you are less likely to be interrupted. Wake up half an hour earlier to meditate. If you are not a morning-type person, meditate in the evening before going to sleep.
It is essential to try to set a habit of meditation.
It is important to be representative of a traditional and authentic spiritual path.
For instance, among the known effects, smoking reduces our vibration and damages the functioning of the chakras, especially Ajna chakra (third eye). There is also the caffeine, which disturbs us and increases our blood pressure, so it’s not recommended if you want to achieve meditative states.
The heavier the meal, the longer you have to wait before you can start the meditation.