How to properly ground yourself?

I am a psychic and I have been growing my abilities as of late.

My issue is I cannot seem to find a way of grounding myself that works. I have tried imagining white light shrouding me, the light switch method, amongst other things.

What ends up happening is at night, I feel these waves of energy that end up spiking anxiety within me. Then I can’t sleep.

Does anyone have advice on this?

EDIT: I have read each and every response and while I could not respond to all of them, I want to thank everyone so much! Much love 💕✌🏼