Sorry if you used the Desktop program on your computer the only copy of your returns is on that computer and any backups you made. Only returns done in the Online version are saved online.
You can request a transcript from the IRS
https://www.irs.gov/individuals/get-transcript
Or get a copy of your return using form 4506
https://www.irs.gov/pub/irs-pdf/f4506.pdf
