How do I customize my bedroom while sharing a room with my son?!

Me & my baby share a room and I have no !dea how I can decorate !t 4 my own style >□< (The wallz r pale yellow & an accent l!ght blue wall for h!m btw) I can change the l!ghtz to be l!ke any color !f I have my tv on and I have cut!e blank!ts (skulls, hello k!tty, dark red) & stuff!ez & a corpse br!de poster!!! !z there anything else I can dooo?!

I don't want my stuffz to get !n da way of h!z stuff 

Is this too hard to read btw??? Sorry if it's annoying I just think typing like it is silly T-T