Upcoming Psychiatry appointment. Unmedicated. 31 YO male predented with diagnosis last year ( i think)

Military. Diagnosis made by paying out of pocket to psychologist. Got referral for therapy afterwards. Got appointment thru military to discuss treatment (allegedly). Appointment was about 4 months out. At appointment they immediately questioned the veracity of the diagnosis and basically just said you'll have psychiatrist appointment. That one about a month out, now happening this week.

Overall about a year or so process. Now if the psychiatrist asks me about what meds would i want to start with (should that happen) can anyone say Start with non stim Or start with stim?

With valid reasoning, or experiential reasons?

I am rather sick of my medical system and my trust in them is completely gone.