H1b Approved but I lost job and have only E approval

Hello Everyone,
I am in a desparate situation. I did my Masters from US.
In 2018 November I had to leave US and (the organization where I was working) because of a family
reason.My h1b was picked and was approved and I have the e copy of the approval letter but I got to know
after I submitted my resignation.So, my employer revoked the h1b or rather a revoke notice has been initiated.My approval was from 11/11/2018
and my last day in the organization was 11/16/2018.
I have no other details nor I have a stamping (which is obvious).Now I am planning to return to US.
So, I have 2 questions:

  1. Can I reclaim the h1b in anyway that was approved in 2018 i.e file through another employer without cap restriction,but I have no details (and the employer wont share any details)?
  2. Can I reapply for h1b again from India and also be eligible for 20,000 extra cap for Masters student.So, being a Masters student does it make me
    eligible to be considered for extra 20,000 forever (Please remember I already had an approved H1b and opted for the extra 20,000)

Any help will be really appretiated.Thank you all.

Regards,
Alekhya Rao

what is the end date for your h1b which was approved ?

The end date for h1b is 04/22/2021