Enchant something to hold the excess!
I find that metal or stones works very well.
When you’re trying to make something that stores/contains another something, there’s just a few steps.
Consecration/cleansing of the object. Some people use sage and traditional banishing methods, some ritualistically ‘kill’ the old item to bring it’s new form to reality. You can do whatever, so long as you’re making the vessel a ‘blank slate’. If you know how to use energetic flame, blue flame works, as well as the purple.
After that is done, you want to make a ‘matrix’. Pretty much turning the item into a ‘chest’ that can hold things. The method I learned was to use a deep, and sincere emotion and lay it like bricks over the outline of the object. A false emotion, or lack of focus will leave your matrix a little ‘loose’, and though it may hold for a time, the energy you store will dissipate sooner or later due to the matrix’s inability to hold shape.
After that, just channel the excess energy into the enchanted object, to do with what you will at a later date.
Protip- this can also be done by crafting your own sigil to do so.
As others will probably say, if you’re supercharged and its excessive, research grounding methods and do some of them. I’ve found that if you ground in random, unprotected space, it will draw more ‘attention’ from parasites. But then again, being supercharged 24/7 has a similar effect.