I want to thank everyone for responding to my post and giving such great advice! I've been reading all these posts from my phone, I haven't been able to get on a computer and respond until now. (My mare is very close to foaling so I've been a little preoccupied..)
Last weekend when I didn't have a lesson scheduled I saddled up the horse I usually ride, and I just rode here around in the arena by myself and we had a great time. :) It was nice just relaxing and having a blast!
However, I was having trouble with the reins though. For some reason I have to keep reminding myself to pull up and not out. Because when I did it correctly, she would not turn and kept sticking to the wall. I'm talking like I kept getting almost slammed into the wall. And I started getting upset again because I felt like I was the worst rider int he world. But when I talked to the instructor later, she told me it was the horse, not me. She's supposed to be "dead broke" but she's having issues that need worked on so I'm being put on a different horse this weekend. Randi, the horse I was riding, won't back up if you're riding her. She keeps pushing me into the wall no matter how much I guide her and she gets distracted by every. Little. Thing. But, she's new to the barn so we're trying a different horse for me this weekend. And he's one that's ridden a lot for people that just come up for trail rides that don't really know how to ride, or have never ridden before.
She wants to take me out on the trail too. Not, really into the woods, I don't know how to explain it...just a short little section that has a small creek and some hills, etc.
Wish me luck! Sorry this is all over the place, my preggo mare has me all frazzled.