your first mistake was to promise arbitrary date for delivery without any data to support that; that is what a common folk call wishful thinking. It never works

your first mistake was to promise arbitrary date for delivery without any data to support that; that is what a common folk call wishful thinking. It never works. Being passionate about something doesn't mean you have to kill yourself working. It sounds to me that you are fairly young and IMNSHO if you are smart you should know not to put ton of hours and have things done. Quantity of hours put into a product doesn't correlate with a quality