Multiple reasons that depend on why you’re anxious. It’s common for issues to get worse if your issue is caused by a parasite - it will fight you to stay, making it worse - have you thoroughly cleansed and set up wards? .
It might also depend on whether you are anxious for good reason that you should deal with rather than hide from, for proper healing to take place. Buer is a healer, and would look for a permanent solution not a band aid.
You’re worrying about both worrying and now also worrying that the ritual you did not to worry so much went wrong. I wouldn’t think of this as a grounded state 
Yeah I mentioned in your other thread, this is probably not grounding you. It has nothing to DO with actually grounding.
As an energy worker, it makes no sense to me that just holding a dense (heavy) stone can do that - if it’s not connected to ground - which is it NOT, sitting in your pocket. HOW is it supposed to ground you? Grounding is about connecting your to the actual Earth, and becoming more Earthy. One tiny stone can’t absorb enough by itself - this is physics and energy, not wishful thinking.
Ground properly using actual grounding techniques, connecting to the earth and breathing out unwanted energy into the Earth.