I've had my 10th lucid dream last night and it went something like this:

"I'm in some one's front yard and I suddenly realize I'm dreaming.
I rub my hands together and stand in my place doing nothing then I take a few steps and move towards the house then everything goes black then I have a false awakening.
I do a reality check and I find out I'm dreaming I go to the bathroom and wash my face with cold water then I wake up 20 seconds later."

None of my lucid dream last more than 30 second.
I don't get "super excited" when I get lucid, I try my best to remain calm so I don't know what the problem is, oh and the reason isn't anything sexual, I usually don't think about that in my dreams.

Any tips to make my dreams last longer (At least 10+ minutes) are appreciated.
Thanks.