So i found that rubbing my hands by itself and spinning by itself just didnt work whenever i saw my lucid dream fading away...

I'm still a beginner and have only had 3 lucids so far- but I found that spinning WHILE rubbing your hands at the same time works wonders for me My dreams almost faded out at least 4 times in my lucid last night, and all 4 times spinning + rubbing my hands at the same time worked

Just my own little personal two cents, might not work for everyone or even cause it to fade further