@Niesen1
Hope all is well despite missing a quarterly payment.
So you seem to indicate that most of your income is earned during the summer months making so income earned June 1 to August 31 would be due September 15.
If you are earning more than you can up your estimated tax payment for September 15.
If you end up with a penalty next year that you should use the annualized method of calculating any underpayment penalty as this method would take account income earned during certain months and can help reduce or eliminate any penalty. (https://www.irs.gov/instructions/i2210 this link will take your to the instructions on how to complete if needed).
Here is the link for the IRS instructions for estimated tax should you need https://www.irs.gov/pub/irs-pdf/f1040es.pdf.
If you need any clarification please let me know and thanks for reaching out during this live event!
Regards,
Janet CPA