Yes, you can use your IRS transcripts to enter your income if you cannot get your original W2's. TurboTax 2018 download software does have step by step options. The software will guide you through all the interviews to enter your information. To purchase the 2018 Download software you can to the following website. Prior year returns with TurboTax must be mailed.
https://turbotax.intuit.com/personal-taxes/past-years-products/
You can also check the internet for other tax preparation software but you will find they are all self prepared software. If you are not sure, you should see a professional tax prepare.
