Lucid Dreamt once (twice?) by accident, how can I do it on purpose?

Hi! I have always had incredibly vivid, realistic dreams and could usually always remember more than one dream per night. I’m 21 now and i’ve dreamt like that my whole life. I’ve always known about lucid dreaming, but it never happened to me until recently. A few months ago I was dreaming, and I remembered a trick I saw in real life (awake) online years ago to test if you’re dreaming. It was to try to put your finger through the palm of your other hand, and if it goes through your hand you’ll know you’re dreaming and then be able to control the dream. Well that’s exactly what happened, my finger went through my hand, I realized I was dreaming, and then I was able to lucid dream and control bits of my dream for a brief amount of time. It didn’t last long. It happened another time too but I don’t remember the details of that time, just that I was able to do it. I’m not sure if that counts as lucid dreaming. I would love to do it again, but every time it’s been on accident. I’m not sure how I first got myself to do that finger test in the dream, i think it just got pulled out of my memory by coincidence. If anyone has any tips on how to lucid dream again on purpose, or make it more likely that I will lucid dream please give me your tips or ideas!!! i’ll try anything!

(not sure if it matters, but i do smoke w33d occasionally and I dream less when i smoke but i do still dream some. Should i not smoke/do whatever i would normally do/change anything up about my bedtime routine?? any suggestions!)