Dystopian novels. So hot right now.
For YA (which is what you seem to be reading currently), definitely check out the Uglies series by Scott Westerfeld. It's part of a series and has to do with body/mind alteration stuff (from what I remember). Also, strong(er) female protagonist.
In a similar vein, check out Feed by MT Anderson, which is considered a dystopian classic but is more somber. More sci-fi.
Other YA dystopian novels you should check out include The Maze Runner and The Forest of Hands and Teeth (zombies!),
Want weird/intense/shocking? Try Clockwork Orange by Anthony Burgess if you haven't already. Written partially in a fictional slang language, 'nadsat', it's full of intensely emotional, violent scenes and has a lot of artistic/cultural references.
Want strange/out-of-body/cool narration? Try out some of Vonnegut's novels, including Galapagos, which is about the 'rebirth of humanity' of sorts after the world's economy collapses. It's told from the eternal spirit/ghost of some sci-fi writer's son. It's a lot of fun! I also recommend Breakfast of Champions, which sort of breaks the fourth wall and plays with themes of free will. The characters are also hilarious.
You mentioned space stuff. And sci-fi. And dystopias. Check out Orson Scott Card's Ender's Game, which is very accessible and apparently has a sweet film adaptation.