since you seem to have lost everything needed to attempt a/c recover you can request either a transcript of your return online after registering
https://www.irs.gov/individuals/get-transcript
or by mail by submitting form 4506-T https://www.irs.gov/pub/irs-pdf/f4506t.pdF
or call 800-908-9946
if you need an actual copy you can send in form 4506. there's a fee of $30
https://www.irs.gov/pub/irs-pdf/f4506.pdf
