I only have the Keystore File (UTC / JSON) and can proof that the ETH sent to myetherwallet came from my poloniex account. I made a screenshot from the private key when I created the wallet, however later I found out that the complete private key is not displayed but just partially. I have like 30 from 60 characters in total fwiw.
Also the private key I copy/pasted once on my phone to get into the wallet. I have been calling around to Apple and what not to ask if its possible to get this old password back that has been overwritten by safari but everyone says this is impossible, same for the clipboard history.
Is there still hope for me?
How can I regain access to my account?
I really hope someone can help me out with this and that I made my story clear.
new information
I found the json number connected to this mew account on a screenshot, can this help me to regain access to my account?