You don't have to list every sale on Form 8949 if you are attaching a copy of your Robinhood statement that lists every sale. You have to make a summary entry on Form 8949 with the totals for each category (boxes A, B, D, and E). It sounds like you are not using TurboTax. If not, see "Exception 2" on page 3 of the IRS Instructions for Form 8949.
