1099-B

My 1099-B form can not be imported.  The brokerage house it is in is not available on Turbo Tax.

Can I mail to the IRS a copy of the 1099-B form that was sent to me, and if so, what do I do about Form 8949 and/or Schedule D?  Do I have to prepare those myself?  Do I need both forms?

 

(I already tried to manually type in my 1099-B using the sales section totals, but it is rather lengthy and complex, with a few wash sales and it did not go well).

 

Thank you in advance for your help!