I can often induce lucid dreams. If I'm in a good state of mind and I will it hard enough before bed, I will lucid dream. My only problem is that the more I break the laws of physics (e.g. flying or manifesting things that can't really exist), the quicker I come out of the lucid dream.
Thats because you don't understand the laws of physics, and your belief systems oh what the laws of physics are are based on a set of principles pushed forth as laws from around the 1930's to move people out of the research direction of aether and frequency principles. Everything since is basically pushing particle theories of various types.
What you need to know is, your belief systems are programmed, and they are deep inside you but they are not real.
The only real laws you need to understand is you create your own reality. Even if you didn't understand physics, if you create rules that makes sense to you and can put in those beliefs in place off and deeper than the programmed beliefs then they will be the real laws. Studying frequency, quantum physics etc though, will definitely help you make sense of how real laws are being put in place, but ultimately all realities are subject to the creator of them. The foundational principles shared between people though, like relativity physics, they are strong and are almost identical to all who share them.
In the dream state, things fall apart because you are carrying beliefs from the 3rd dimensional and trying to apply them into the 4th dimension, the dream state, the astral planes etc.
I'm not sure how to guide you here, but you need to do things the other way around, maybe studying other peoples dreams and what rules they usually don't follow will help you integrate the fact that there are no laws.
I can tell you a few things I often do though, telekinesis, fly, somersault as if through the moons atmosphere, change species, see through bodies into the arteries and bones, fly ships that can turn themselves inside out, flown antigravity shuttle type things, ships but not like space worthy ships. I'm sure theres more but thats the main ones I can remember right now.
Actually forget even dreams, start looking up what people have experienced, glitches in the matrix and stuff like that. You'd be surprised what is possible.