Criminal Speeding Off “Pace” 1st time offense (Arizona)

Location: Maricopa County, AZ

TL;DR I got a 1st time criminal speeding ticket and can’t afford an attorney but getting convicted is extremely detrimental to my career

Afternoon of 4th of July I got a speeding ticket based off pace of me going 30 miles over the posted speed limit on the I-10 (east bound).
I am in a career field where speeding tickets are very detrimental to your employment and can have repercussions greater outside of the normal legal proceedings.

This is my first offense as well as my first time being pulled over in the state of Arizona (which I had just received a AZ Drivers license for a year prior) the officer said “I had to chase you down for the past 10 miles to catch up to you” however I had only been on the I-10 for roughly 7 miles when I got onto it. Obviously there is a bias here, I do not believe sincerely I was going THAT fast. He pulled me over while I was overtaking a car camping in the HOV lane.

I’m 21 years old and actually am moving to the east coast for a lower cost of living as living in the greater phoenix area is beyond my means.

With money being extremely tight for me, but the risk of being convicted what would be the best course of action? Hiring an attorney would require a personal loan of sorts to make possible.
Many thanks