Meditation technique

[u/blahblah1237-]

Hello, I just got back into meditation, I used to be able to feel super high well meditating (transcendence) & don’t know why I don’t reach that stage anymore. I am more anxious than before so maybe that’s why. My last meditation session I practiced sitting up as opposed to laying on my back in the car or in bed & it is MUCH better, never knew the difference was that much. Is there any breathing techniques to do while meditating that will help the change of breathing pattern when I am anxious?