One last thing too, if you intend to continue this through 2018. If you open a bank account that is for the business only, and absolutely nothing else, that is probably the 2nd best documentation you can have. All business income goes into that account, and only business income goes into that account. All business expenses are paid out of that account, and only business expenses (including your owners profit draws) are taken out of that account.
If I recall,
@SweetieJean has some links pertaining to self-employment that I'm sure you'll find helpful.
