I'm 26 and still a weeaboo.:3
HAY GUICE, WHERE'S DA /jp/ BORED? HOW'D I END UP COMICSNTOONS, THAT'S NOT GLORIOUS JAPAN. O WAIT, DATS NEET.
I really do like mixing words from languages I have any remote interest in learning into English, though. Not just Japanese.
Britain conquered pretty much every country in the world. They deserve to have their language infected with every other language in the world. It's only justice.
You should stop not being a weeaboo and go back to it. Also, you should try throwing random German into English sentences. It's a lot of fun.