How can I get a deduction I don't have half of my W2's

You can file an extension. The extension gives you until October 15, 2025 to file your taxes without getting a failure to file penalty.  You don't get extra time to pay your taxes, so you must pay any taxes that you may have that are due by April 15, 2025 so you won't be assessed the failure to pay penalty.

Refer to the TurboTax Help article How do I file an IRS tax extension?.  If you need to file a state extension, review the article How do I file an extension for my personal state taxes?

Contact your employers to retrieve your W-2s.  You can also contact the IRS for assistance toll free at 1-800-829-1040. The IRS can help you with trying to obtain your W-2. 

Another option is to file a Form 4852 as a substitute W-2 Form along with your tax return, but you will have to mail your tax return.

For more information, refer to the TurboTax Help article What To Do If You Haven't Received a W-2 and How do I file a substitute W-2 using Form 4852? 

You need to enter all of your 2024 W-2's on the same tax return.   Not sure what "deduction" you think not entering some of them would get you.  

 W-2’s come from employers.  There is not a federal or national website that provides W-2’s.   If your employer is partnered with TurboTax to allow the W-2 data to be imported into the software you can do that---but you need the actual W-2 so that you can enter the EIN and the amount from box 1 to import the other data from the W-2---which just saves you the little bit of keying in of the other information.

Every 2024 W-2 that you received must be reported on your 2024 tax return, even if they are for small amounts.  Remember that each one of those W-2’s has your Social Security number on it, and that income was reported to the IRS by the employer.  You do not want trouble with the IRS for under-reporting your income or have your refund delayed by having missing income.

ALL of your W-2’s must be entered on the SAME tax return.  

Go to Federal>Wages & Income to enter a W-2.

After you enter the first one, you click Add Another W-2.

W-2's come from your employer, and they have until January 31 to issue it.  Some employers allow you to import the W-2 through the software, but for security reasons you still need information from the actual W-2 to import it. Some employers have payroll sites that will have your W-2. You might need to phone, drop in, email and/or snail mail an old employer to make sure they know where to send your W-2.

https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-forms/get-copy-w-2/L8FTim9MO_US_en_US?uid=m68ee4os

https://ttlc.intuit.com/turbotax-support/en-us/help-article/import-export-data-files/import-enter-w-2/L55HzdeDr_US_en_US?uid=m68efe36

You can get a wage and income transcript from the IRS:  It will not show the actual W-2, 1099’s, etc, but will show the income information the IRS received.  It will not, however, show your state information. It will only show the federal information.

https://www.irs.gov/individuals/get-transcript