Hi! 
Take it from another beginner, WILD is hard! So you did really well to do it at all. I’ve been trying every night when I go to bed and I’m nowhere near. It’s a lot easier when you wake up in the night, like SubWolf said.
To stabilize an LD, I find flying works really well for me. But then other people find it really hard, just experiment next time you have an LD and see what works for you. Heres a really awesome guide that helped me - https://community.ld4all.com/t/dream-control-training-course/31812
Good luck and remember: think positive, you are a lucid dreamer!