Just enter the 1099B sales.
Enter a 1099 B under
Federal Taxes on left or Personal (Home & Business)
Wages & Income
Then scroll down to Investments and Savings
Then Stocks, Cryptocurrency, Mutual Funds, Bonds, Other (1099-B) - click Start
Then click Add Investments at the bottom
Next screen hit Continue
Then don't enter or pick a bank, at bottom click on Enter a Different Way
Then pick box Stocks, Bonds, Mutual Funds - then Continue
Enter the bank or broker
Answer some general questions and Continue
Then Continue a couple more screens and you finally get to the 1099B entry screen.
You can enter a 1099B manually or try to import it. If you import it be sure to check it over close and make sure the cost basis got imported and is right. How to import your 1099
https://ttlc.intuit.com/community/entering-importing/help/how-do-i-import-my-1099/00/26254
If you have a net loss for the year you can only deduct 3,000 (1,500 MFS) max on your tax return. The rest you have to carryover to next year. You have to report the carryover every year until it's used up. You can't skip a year.
