Hey, i’ve been having a rather similair problem, as you can read here: Here
The following helped me:
When you get sensations from your real body, try and get a lot of sensations from the dream eviroment. Rub your hands together and feel the friction and warmth, touch a lot of things in the dream, if you feel it isn’t working you could always try spinning or letting yourself fall backwards. I haven’t tried the last two yet but getting the sensations helps me. It is important to remind yourself of it being a dream when getting the sensations, as I’ve lost lucidity a couple of times doing so.
As “Laurelindo” said in my topic (Edit: Lol 
, didn’t realise you were in fact Laurelindo, haha ), it might also help to treat the dream as a real enviroment for a bit. I met somebody I knew in one of my ld’s when it was fading and just decided to walk and talk with her for a bit. After a bit we entered a classroom and she said “good luck with your teaching”. I looked a bit puzzled and said to myself “Huh…? I’m not going to teach, this still is my dream!” and then teleported away" 
There is actually a tutorial on prolonging lucidity on this site, which is also helpfull for this subject. Over Here. (not to be confused with his brother named “Here”)