All the above advice of getting a bookkeeper is good advice. I am just chiming in here to say, you will not go to jail over this as long as you take care of it. Even if you did owe a lot of back taxes (which I am sure you do not as you just got started), the IRS will help you set up a payment plan based on the amount of income your business has. It is of course better to pay it off as soon as possible because they do charge interest, so if you are only making the minimum payments, it cantake forever and end up being more expensive.

What a scam. What is stopping her from taking your money and ghosting you? Instagram? Not a legit business.