Processing times vary from application to application depending on volume and USCIS staffing capabilities. The time it takes to process a DACA application can range from 60 days in some types of cases to 27 months in others.
Unfortunately, because this application was only just released, we have no idea how long it will take for USCIS to adjudicate them. I-765s are usually in the 60-90 day range, but that's when they're adjudicated on their own based on an already-pending underlying application. These I-765s will require the adjudication of the I-821D as well, and that's where the processing times are unknown.
THIS ANSWER IS FOR INFORMATIONAL PURPOSES ONLY, DOES NOT CONSTITUTE LEGAL ADVICE, AND DOES NOT CREATE AN ATTORNEY-CLIENT RELATIONSHIP. Immigration is complicated and the wrong action can have serious consequences. Never take action in your case based solely on general information like is offered here. Speak to an attorney who can give you specific advice about your own situation.
It sounds like you did a good job completing your DACA application. I can only guess that the applications will be considered in the order that they are received. Based on the information received from various attorneys they have received many applications.
How long it takes to get through all the DACA applications will depend on how organized and prepared the government was before they started receiving the applications.
Processing the DACA forms will take the USCIS at least long enough for the biometrics and background check.
I hope that your self-confidence about doing everything so perfectly pans out.
I've already done a dozen applications and, even with 34 years experience as an immigration attorney, I can state that the process is far from simple and straight-forward.
We are hoping that it will only take 90 days. But, it has also been predicted that a large number of applications will be filed that are incomplete and need closer examination.
CIS has a limited number of employees and thus, it is impossible to predict processing times.
IMMIGRATION LAW PROFESSOR for 10 years -- LEGAL DISCLAIMER: This answer is offered for informational purposes only. It does not constitute an attorney-client relationship.