I'm new to this site, so not COMPLETELY sure whether I'm posting this in the right section, so tell me if it's so.

I've tried lucid dreaming for a few months now, and I've only been able to have round 5 dreams until a few days ago. In those, the maximum time I was lucid was around 20 seconds.
Yesterday, I tried SSILD(Senses Induced Lucid Dreaming), and I managed to induce 6 lucid dreams! However, each lasted for around 5-10 seconds.
The problem was, as soon as I try to stabilize the dream via hand rubbing, and concentrating on them, the dream seems to waver, and then I wake up for about a second, and then the next dream starts.
Is there any way I could address this specific issue, cause even before SSILD, prolonging my dreams was my biggest problem.

Thanks in advance!

EDIT: In the first cycle of SSILD,(the sight stage), I kind of kept falling semi-asleep. Would this have been a problem?