We cannot see your information so we do not know why you did not receive stimulus checks. Were you eligible?
Eligibility for stimulus---from the IRS:
A1. Generally, if you are a U.S. citizen or U.S. resident alien, you will receive an Economic Impact Payment of $1,200 ($2,400 for a joint return) if you (and your spouse if filing a joint return) are not a dependent of another taxpayer and have a Social Security number valid for employment and your adjusted gross income (AGI) does not exceed:
You are not eligible for a payment if any of the following apply to you:
The stimulus check is an advance on a credit you can receive on your 2020 tax return. If something went wrong or you did not get the stimulus check in 2020, you can get it when you file your 2020 return in early 2021
The Recovery Rebate Credit will be found in the FEDERAL REVIEW section. ( you should see "Let's make sure you got the right stimulus amount”) If you are eligible it will end up on line 30 of your 2020 Form 1040.
Make sure that you enter ALL of the stimulus money received for the 1st and 2nd stimulus for yourself, your spouse and your children.
https://ttlc.intuit.com/questions/1901539-how-do-i-preview-my-turbotax-online-return-before-filing
Click on Tax Tools on the left side of the screen. Click on Tools. Click on View Tax Summary. Click on Preview my 1040 on the left side of the screen.
If you didn't receive automatic stimulus checks, there could be several reasons. If you are eligible, you could file a 2020 income tax return and claim the Recovery Rebate Credit.
To be eligible for the stimulus check: Generally, if you are a U.S. citizen or U.S. resident alien, you will receive an Economic Impact Payment of $1,200 ($2,400 for a joint return) if you (and your spouse if filing a joint return) are not a dependent of another taxpayer and have a Social Security number valid for employment and your adjusted gross income (AGI) does not exceed:
You are not eligible for a payment if any of the following apply to you: