Condolence mate! The only help I can impart with you is that you must be attentive, and avoid this kind of mistake. Having loss youre PK is a no no in crypto and you should know it by now. This is decentralized aspect every new member or just discover crypto MUST know. If still looking for a solution, then try to find your PK its is the only way to open it.
Nothing sweet if we loss our KEYs, its absolutely nothing we can do for that.
Every mistakes we commit will be a lesson and learn for everyone. We can't either blame nor to condemn somebody but is our self. Mishandling of pur keys will lead into losing and it is sad that we can't recover it.