Wish I'd got an inspection before buying my car

I’m kicking myself. I bought a used car a few months ago that looked great, drove fine, and had a clean history report. Now I’m dealing with a weird electrical glitch and a suspension noise that the mechanic says points to wear that was definitely there before I bought it. I was so focused on the bodywork and test drive that I skipped a professional check. A friend recently shared some pre-purchase inspection advice that included getting a full diagnostic scan and having the car lifted to check for leaks and hidden damage. I’m sharing this so others don’t make my mistake. Has anyone else learned a hard lesson about buying a car without a proper inspection? What did you miss?