Audit u/s 44ad

I earn my income online through freelancing and I file income tax through ITR 4S under presumptive income.

This year my turnover has exceeded 1 crore so I have to submit an audit report along with the ITR.

Please let me know what to do as I have not kept books of accounts as I thought that this year too, I will file ITR 4S but did not realize that turnover has exceeded the maximum limit.

Can I contact a good CA and give him my bank account statements? Is that enough for audit?

Or can I file return through ITR 4 without audit?

I don't have a registered company.

Please help, I am really scared.

Thanks