DUII Oregon (Denied court appointed atourney)

So recently I was charged for a DUII while riding a e bike,I was originally appointed a atourney which the plan was to do diversion because it was my first offense and it seemed like the prosecutor would be fine that that..

Two weeks later I was denied a court appointed atourney on Friday,My court date is on monday would it be possible for me to just to represent myself and request diversion? Or could that backfire? Seems last minute to try find a lawyer plus I currently just stopped working at both my jobs because I move in two weeks so not a ton of Xtra funds.

PS,From my understanding because recently had my father's probate and I have 17,000 in savings is why denied a court appointed atourney.