Do you have a direct skip? Ostensibly, you haven't had one previously so Line 2 should be zero since you had not previously used any of your exemption.
You might want to look through the links below.
The link below is to 709 prep software (it's 50 bucks):
https://www.puritas-springs.com/product-category/federal
The links below are to a couple of (moderately helpful) Youtube videos.
https://www.youtube.com/watch?v=a5wJow5h-No
https://www.youtube.com/watch?v=5Z_28sVOrTY
