Yeah I wish I read it more thoroughly now. So that sucks. But honestly, the instructions are so vague in my opinion.
Like this for example, regarding current income: 'For example, you may include a recent letter from your employer, showing your employer’s address and telephone number, and indicating your annual salary. You may also provide pay stubs showing your income for the previous six months.'
I read the 'you may also' as you can do them mutually exclusively, not have to do both. But that might be me being foreign? I don't know. I think I won't use the paystubs, because I'll have to get the letter and that's just gonna take time (plus I have to let my husband do it and I hate not doing it myself) so I'll use the complete tax return copy. I'll look into what that will be, because I currently only have the tax return transcript with like 6 pages. I don't want to mess this up.