I emailed them yesterday,
so it is going to take more for me to get an answer...
problem is ...I only had like a few images, so I don't really make enough money..

Would this work if I go on the backend, and select >Data Type> Earnings
select period from> January 2018 to December 2018
Display> yearly
then I can see the amount.

Do they report earnings from january 1 to end of december of the same year?

Yes, you can pull your 2018 earnings from the dashboard. The problem is that it may not match the 1099 (if you receive one) due to the payout timing, refund, etc. And you do not want to report your income less than what's on 1099 as it may get flagged by the IRS. I think I am going to do what Hoodie Ninja said which is using the higher number (payout VS earning) just in case.

Mine is missing as well, I was told to email [email protected]

Have you emailed them and got any reply? I emailed adobetax twice already. It's been 2 weeks and still haven't heard back.