A learning experience for a gym virgin

I decided that the hot (95+) humid (60+) degree weather this summer would not be logical to work out in outside.  So I finally got around to joining a fitness center/gym and in doing so, I figured it might be good to get a personal trainer, just 2 times a month, to keep me in line, and show me what to work on.
My first time ever in an actual gym/fitness center.  My first time with a trainer.  Whoo boy.

 Here's some of what I learned:

• While I can walk and kinda jog over a mile and a half, this doesn't mean I'm in shape.  In fact, my core is sadly out of shape, and so were my thighs (which I knew I was weak on, but not that much).
• Having a Personal Trainer was a benefit, as I did exercises I wouldn't have done on my own with equipment I wouldn't normally use (stair steps, exercise ball, floor mat).
• You can weigh over 300pds and still get on an exercise ball and you won't die, and it won't pop.  I was skeptical at first.
• Eat a small nutritious and filling snack before you go, about 30 min ahead of time, it does help.  Being hungry or on an empty stomach does not benefit you. (I also learned what it feels like to almost pass out, could have skipped that part)
• Ask the trainer questions, or to repeat a move, mine was very patient and did not hesitate to demonstrate again if needed.
• Just go and do it, no matter how much or little if you really feel you can't.  I had to stop twice for an extended amount of time (a minute or 2 if not more than), my trainer was supportive and encouraging when I was ready.  
• Even if you don't go with a trainer, most gyms will have someone walk you through how to use the equipment (because they don't want you breaking their equipment) so you get comfortable.  Don't just go and use the treadmill and leave, like I planned on when I thought about joining.

I did not get through my full workout.  Partly because we did the weight in, measuring, and benchmark tests, and partially because I had to take extra time.  But I went, and I did it, and I hurt a lot.  And I'm going to do it again on Monday. I'm planning on going tonight (after I man up a bit) and at least getting a walk in to loosen my thighs.  Oh the pain.