Self employed

@JBedford Interesting. I would've just assumed that, because I'd failed to make earlier quarterly payments and none of my taxes are currently being withheld for 2023, that I would've definitely incurred an underpayment penalty. That being said, however, it's great to know that I can just make a payment to the IRS and it should count towards my taxes. When I log onto my IRS account it doesn't necessarily say that I owe any money currently, but I'll still make sure to make a sizable payment soon to make up for the previous 2 payments that I missed. 
Thank you SO MUCH for your help! I've been so lost in this whole process - I really appreciate it!