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Tofugu is a fairly extensive site and blog on a diverse range of Japanese topics. Their guides to language might help you develop your skills- but be warned that you might find the occasional dose of salty language in here, so if your sensibilities are particularly delicate, you might want to stay away.
I've linked to their playlist on Japanese holidays- these videos might be basic for you, but they have vocabulary scrolling as the speaker talks, and give you a little culture, too- what's not to like?