I used to have 2 hotmail accounts and one msn account, after the forced conversions to outlook, I am only able to access one of the three accounts and outlook will not let me add them?

The sad news is the one hotmail account is one that I established right after hotmail came out, 20 years ago?  I no longer have the password for that account, I had it linked together on live.com and one log on got me access to all three accounts.  I have contacts with friends that I will never be able to find if I am unable to access that account. 

  Very sad and frustrated, is there any solution to this?  Any help would be appreciated.

Thanks