Trying individual dates like this or asking relatives for any meaningful dates is utterly pointless. You will spend far longer doing this, with a far lower chance of success, than simply setting up btcrecover. Even if you want to expand the search range to every single day +/- 5000 years from today, then you can exhaust that space in half an hour for a single date format using btcrecover.

I've even offered to set up the tokens file or even try cracking it myself for free. If OP still just tries randomly guessing individual dates manually, then he's really got no one to blame but himself.