so yea the title says it all. I was home from school today and went back to the bed for some sleep. Guess what happens

i Have been trying this for about 3 weeks, but i was only doing Dream checks the first, so yea i gave up after a week. I am glad that i finally got a lucid dream, without any sort of preparation/training.

So the dream starts out with me and my family, also 1 of my dogs. The dog starts to chasing something and jumps up on a really high tree. And of some reason, i wanted it to be a teddybear, like that was a natural thing to say. The dog doesn't become a bear BUT in some way i get that its a dream. I look at my hands, but i already knew that i was dreaming. So yea i don't get too excited and just 4 seconds later the whole world fills with the face of the joker (Batman). i get scared and decide to just wake up. When im awake i feel dumb, nothing can hurt me in my dreams! So i decided to fall asleep again, AND IT WORKS. There i am, lucid directly from beginning I play minecraft a lot, so i like spawned in a cave, i get really excited and spawn a bazooka to just shoot something. Then i understand that i dont want to be here, i need to spawn in a big flat grassland! But something happens, and a sign pops up and ask me which aircraft i want to use, i just take one of them. Then i wake up

Some questions:
1. i got two lucids the first time, is that normal?
2. When i was in the dream i could feel the whole body vibrating, especially the tounge, is that normal?
3. Do you belive me?
4. Should i try to train a method? Or just go with the flow like i did this time?