Yahoo Email deleted all my emails..

Hello,
I had my Yahoo account since 18 Years old. I logged into my account after like a year or 2 at max on 29 May 2019.
When, I logged in A messaged Poped out that your account is being made as it is logged in after 12 months. And when It opened everything was gone.. I had emails of 18 years and everything in it..
Now, I want it back. What is the best way to get it back. I emailed on the yahoo help but they won't reply me. Plus, I see messages on the Help site that messages deleted older than 7 days cannot be retrieved back.
someone can help your this friend over here.. guys.
those emails are very very very important to me.
hoping for your cooperation guys..