I could use some advice?

Okay, so. I've paid for my medical expenses out-of-pocket while waiting on OHIP, which I finally Officially Got last month. I won't be driving again until the weather's warm enough for me to change the tires on my car myself. (Ah, joints. Also: either too much pain and fatigue to drive or too much of pain meds to drive.)

The only Official Family Doctor I've ever had in my life was at the Planned Parenthood in Toronto, and she handled pretty much everything, because every 'specialist' in my area had a no-out-of-pocket-patients policy. (Basically, if it's not something that gets handled by your Family Practice, I couldn't access it.)

I'm about to go on a proper waiting list for my family doctor, and I've been told by multiple medical professionals that I'll be put on waiting lists after that for specific specialists.

What questions should I know to ask? What level of autonomy, choice, and influence should I expect to have? I'm not, to my own knowledge, actively dying from something expensive and incurable, I'd just really like 1. a coherent diagnosis for my physical issues and 2. the ability to do chores and errands more often.

I want as few unforeseen roadblocks as possible for this transition to Using Medicine Like A Normal Canadian. I've never had medical care from something that wasn't basically a walk-in or Free Clinic of some kind. I, uh, have almost no clue what to expect.