Problem with moving in a dream

Hello! I think I had a lucid dream today and I seem to encounter a problem when I know I'm dreaming. Here is what happened.

I was in my home kitchen and I noticed that when I looked at my living room there was a big open space in the middle of the living room. I walk slowly and to the middle but I hear something coming out of the other room. I get scared and wonder who it was. It was just my small little Niece. I made this horrified scream and decide to open my eyes. When I open them I am in my bed but something didn't see right. I did a reality check(holding my nose to see if I would breathe). I then realized I was dreaming and said out loud, "I'm dreaming." It was a little hard for me to get the words out and I couldn't move at all. I felt some kind of force trying to keep me in the bed.

Is there a way to overcome this problem? I recently had a couple lucid dreams(last month) and I can't move when I realize I am dreaming in them too.

Maybe your not getting completely lucid, or, i dont know thats too weird.. causee i think that when you go lucid in a dream.. 2 things happen... either you wake up... or you start running around doing as you pleasee with the world.. maybe you just had a little but not complete awarenes of being lucid and that was theproblem.. im no expert, thats just my opinion, maybe you can try autosugestion and tell yourself before going to sleep, that your gonna get full control over your dreamss.

Hope it Helps, good luck