Advice/ chances?

First time writing here, I recently tried to self sponsor and did not get selected… I passed everything required and when I had a panel interview with the academy they straight up said “A chief would look at your application and not even take the time of day”. When I asked what is it, I was told “Your credit of 600 and your work history”

A bit of my background, I’m 28 I’ve been able to show in the past I can keep a job as I’ve worked in different places and lasted 2-3 years without getting terminated or write ups, where things became inconsistent for me is when I tried the sales industry, I was living strictly off of commission and if numbers weren’t going great I had no choice but to look for the next moves, I explained this clearly to them. Where I’m confused is they said a chief in any department wouldn’t even bother with me… but then here I am with a conditional offer with a department where all that is pending is just to take my psych on March 16th and then begin my background investigation as I have passed everything else in the process.

Now here’s the thing, I’ve been unemployed for 9 months, my bills have still been paid on time as I’ve been living off of savings and family support, the reason for leaving my last employer was because it was a 4 hour daily commute total and after passing probation hoping to get a transfer closer to home, they were unable to help me so I decided to resign as the commute made no sense for me any longer. I haven’t jumped into employment since then because I’ve been really taking the time to work on myself and focus on what career path I wanted to take because I don’t want to end up job hopping anymore. What are honestly my chances? If it’s not looking the greatest, should I just look into joining the military? I’ve done ride alongs and have friends in law enforcement and I’m pretty convinced this is where I want to head and get into. Thank you for anyone who took the time to read this and give any legit advice and help.