Dude, I've been pixelling since I was 15, I'm 16 right now, you gotta be kidding me if you can't come with not even a single idea, also, you're not making much sense "I made a few pixels then I wanted to do more but I just couldn't think of what to do...", wait, a few pixels, like did you make a circle and go "I give up"?
It's not hard to do art, I mean jesus dude, just decide something, watch some TV, listen to some music and make something, you don't have to be totally original, go ahead and make some random person, it's still an idea, amirite? Now stop being emo and do something with your life, you can either bitch or you can start trying to get good at what you wanna do.