Amend return 2019

How can I change my 2019 tax return to married filing separately after I did it jointly. My wife and I need to sign the printed 1040 but she can't, she's in the Philippines at the moment and doesn't have a social security number or visa to come to the states yet so it's better if I do it separately. I DO know about the ITIN number but I want to pass all that headache for now and she's never been to the states so I dont think she will get approved.