I want to further my lucid dreaming skills, but there's so many directions I should go in, I don't know where to start. I feel like I am always setting my goals too high and never fully accomplishing anything. I'm just looking for some tasks that would help me build my skills a little more, some smaller steps to help me work towards the larger steps. Here's where I am at currently:
Things I Can Do:
-Stabalize a collapsing dream.
-Bring back a dream if it goes black.
-Summon an object I need into my hand
-Create doors on walls by drawing them with my fingers, but they never lead where I want them to. I always write on them where they lead, and sometimes imagine what's on the other side. They usually just lead to another room in the house, a pantry, and one time the inside of a fridge lol.
-Running really fast, jumping really high.

Things I've tried and had trouble with:
-Flying, I've tried many times. I've been able to hover a little bit, but have very poor control. I always fall. I've tried jumping off of things, but have always fallen on my face. I seem to self-sabotage my ability to fly with doubtful thoughts about my success. I don't really desire to fly all that much, there's easy ways to travel in my opinion, but overcoming my self-sabotage could be helpful I suppose.
-Sex, my dreams almost always collapse when I try having sex. I've found some techniques that help, and at the very least can bring my dreams back when they do collapse. I'm not really looking for help with this though.
-Getting my doors to lead where I want, although I've almost always tried making them go to weird places: subconscious, my future, and heaven. The only normal place I tried was the beach, and it didn't work either. All of my doors are always created on the wall from inside of a house.

Basically, all that I've become really good at is stabalizing my dream and bringing it back when it collapses. Summoning objects that I need into my hand has also become like reflex. Whenever I need to write something on my door, bam pencil in my hand. I use to have to search my pockets for it, but now I don't even need to do that most of the time.

What I want to work towards:
-World building. I want to be able to create scenes around me. If I want a castle, I want to be able to create it. I just don't know how to go about it, like what thought processes I should go through. Would it be easiest to try and summon it in my current location? Or would teleporting to it be easier? I suppose it depends on the magnitude of what I'm trying to create. Either way, summoning objects that can't fit in my hand has so far not been possible for me. Changing my scene is also something I have yet to do. I can change my scene, but not really direct it. I've whirled in circles before and randomly teleported places. After collapsing a dream, I've brought myself back and into a different location. I tried imagining being in a Colosseum one time after my dream collapsed, but it didn't bring me there. I'm just looking for some steps I could take to help develop my world building abilities.

-Trippy things. I have had some really trippy experiences in my dreams, so if there's just any ideas or things that you've done that are really surreal and bizzare, let me know. I'm always looking for new things to try.

I am open to anything really. I just want to build my skills and know some smaller steps I can take so that I can reach my bigger goals. I think I try to do things that are too difficult for my level of control. When suggesting things, it would be helpful if you included some tips or some thought processes you go through to accomplish them, thanks!