No don't watch Hetalia yet because you'll hate it because people give up on episode one because of how it was too fast paced to make sense.
I think card-captors is cool, some others to try...
Black Cat
Train Heartnet is the infamous gunman 'Black Cat', a cold-blooded assassin who works for the organization known as 'Chronos', bearing the mark XIII on his body. Most of his life was surrounded by violence, so Train is quiet, asocial and uncaring. However his life changes as he encounters the mysterious Sweeper (bounty hunter), Saya. Her unique way of living interested Train but tragedy occurs, resulting in Train changing the way he has lived towards the life of a Sweeper with newfound friends Sven and Eve.
DN Angel(?)
Niwa Daisuke is your average teenager, until his fourteenth birthday. He tries to declare his love to the girl of his dreams, but fails. Suddenly, whenever he thinks about this girl he turns into the legendary phantom thief known as Dark Mousy. Daisuke's mother, very much aware of this, makes him turn into Dark and steal valuable works of art for a purpose unkown to Daisuke. As the story unfolds, he learns why, and about his classmate who seems to have the same ability.
Detective Conan/Case Closed(you probably won't like this, but I'm just bringing up options)
Kudo Shinichi is a seventeen year-old high school detective whom people call the "Modern Sherlock Holmes." However, one night after a date with his childhood sweetheart, Ran, Shinichi witnessed an illegal trade and, caught off his guard, was knocked unconscious and fed a drug that was supposed to kill him... but he woke up and found himself shrunken to a seven year-old. In order to track down the men who did this to him, Shinichi hid his identity and lived with Ran, whose father happened to be a hopeless detective, and with that came a series of murders and mysteries that he must solve.
I haven't finished DN yet, but the other two absolutely rule! XD I even have a Train cat and Detective Conan is a top favorite of mine.