After you file

What do you mean you do not have any figures yet?

Did you work for an employer?  They were required to provide your 2019 W-2 by the end of January.

Are you self-employed?  If you have not received a Form 1099-MISC for your self-employed income you can just enter the amount of SE income you received without any form.

 

Do you receive Social Security benefits or retirement income?  You should have received a From SSA-1099 for SS in January or a Form 1099-R for retirement in January.

Do you have a brokerage or financial service account and you sold an investment?  The Form 1099-B, 1099-INT or 1099-DIV should have been available in February.