I got introduced to Buddhist meditation through the practice of meta and the cultivation of the four bramaviharas. It was going well but I decided I needed the ability to separate my ego and my will. For this, I thought vipassana would be the right tool. After doing some readings, however, it became apparent that to properly do vipassana I would have to develop my concentration with samadhi. At this time I almost solely do samadhi concentration meditation.
I am a lay person and feel I don't have time to do the different meditation sessions per day, one each for meta, samadhi, and vipassana. Yet I see benefits in them all and would like to master all three.
Do you have any guidelines on how to incorporate different styles of meditation into my practice? Is it best to stick with one for a while, then move on to another? Is it best to rotate on a daily basis? Is it best to do a combination of all three in one sitting?
Also, the question can be repeated for meditating on the four bramaviharas. Is it best to do them one by one, all at once, or something else?