recently i had opened up a hex spell jar in order to properly dispose of it but i forgot to up my protection and all, and i have felt incredibly anxious and have had more panic attacks in the past few days than in the past while, and i was wondering if anyone knew a really strong cleansing ritual that could get rid of the bad energy i accidentally brought on?
I don't think you brought on any bad energy. I think you've simply exacerbated some anxiety about opening the jar.
Address the anxiety. Realize that you opened the jar with the purpose of disposing of its contents, and that since the target of the hex was someone other than you, it cannot affect you.
I agree with prsona, I don't think there is much cause for concern. I don't think it would take much to clear yourself. Personally, I'd consider a bath with a touch of salt in the water, or a mindful shower with a sprinkle of salt in with the soap you use to scrub yourself.
By mindful, I mean being consciously focused on the idea of the running water, soap, and salt cleaning and clearing your body and mind physically, mentally/emotionally, and energetically. Water is an element of emotions and movement/flow, let it clear your mind. Soap cleanses the body of dirt and surface toxins. Salt is a grounding agent which clears excess or unwanted energy by basically soaking it up. Salt is also an electrolyte and makes water more conductive too, helping it be more effective.
Get in the shower, mindfully go through your routine, and watch the grime (both literal and figurative) go down the drain. Just don't pile -too- much salt on when you scrub. It is abrasive so a pinch or two will do ya unless you want to do some hardcore exfoliation.
My answer wont be as complex and grounded in ritual thought. That said, if you believe something will be of harm, you bring that energy yourself. Hence the saying mind over matter. Absolutely ground yourself and do ritual for protection, but know that the mind is extremely powerful and can make you think and do things based on a perceived notion. Hope this gives you some food for thought.
I agree with the above sentiments in that what you are currently experiencing, the panic, may be brought about by your anxiety regarding opening the hex jar without protections. By the way if you do have protective charms and such in your space, whether stones, witche's ladders, whatever else, then you are not necessarily unprotected.
If you feel you need a full cleansing ritual I use one for space which can be adapted for your person. Begin by lighting a protective herb, rosemary, mullein etc, and waft the smoke over yourself as you are able. Use a fire safe bowl or censor.
Next if you have it, use holy water or consecration oil on your forehead.
Simply a dab of it.
Finally cleanse via sound. Clapping the hands works well. However many times as you find helps.
Then if you'd like close with a short affirmation.
Something like, "I am protected and cleansed within this space."