Congratulations on the LDs! I totally agree about sleeping in. That is such a great time to pull down a lucid. A little extra sleep gives you so much great REM, more awareness, and just more chances to catch yourself dreaming. This is particularly true if you wake up at your normal time then go back to sleep for a while.

Then I woke up, but I could have been dreaming this dream longer,
I guess I just got bored of the story or something..
This may just be an opportunity to focus more on controlling the dream and taking it in a direction that you want it to go. If you're bored or upset with what you're seeing, that's a good time to move things toward accomplishing your own lucid goals.

Do you have a couple of major lucid goals that you keep in mind all the time? This is IMO a good thing to do since it makes it much easier to galvanize yourself and take action to change the dream. (It's motivating too.)

Edit now that I try to remember the first ld: I was trying to wake up from it but it seemed like I couldn't...
Anyone ever feel this way in a dream?
The only time that I've intentionally tried to wake up is when I've just accomplished something important and want to immediately wake up to write it down. I've never had any trouble so far. If I want to wake up, it usually happens very quickly. You may want to try just thinking about nothing but your physical body lying in bed. That's usually a mistake that I make which causes me to wake up too soon.

Do you remember why you wanted to wake up?