first of all: regular Reality Checks, ask yourself if you are dreaming, how you got there, etc.
then MILD while falling asleep, here’s a tutorial:
https://community.ld4all.com/t/mild-tutorial-mnemonic-induced-lucid-dream/29018
it works better if combined with WBTB, but i think it will show results thatway, too.
hope you find it useful 