Since you are not currently allowed to work, could she work more while you take care of the house/kids? Does not need to be forever, but would satisfy the sponsor requirements. Also, you might want to look at https://www.onepercentforamerica.org/ to help pay the fees. Does she have any assets? Do you have assets?
Not to be pessimistic, but sponsoring someone is a great responsibility, with unknown future costs. The amount you would have to pay me would exceed the assets required to qualify. If you are unable to find someone, she will have to increase her income. Look at local colleges and trade schools for quick training/higher income opportunities. Google your state+"career center" to find assistance with that.
You can also reach out to immigration help in your area, you do not want to be out of status right now.
https://www.immigrationadvocates.org/legaldirectory/
Finally, for the benefit of all here, and to help answer your future questions, please fill you timeline.
https://www.visajourney.com/timeline/profile.php?id=490280