I don't even know if this is correct: おまえあなたはわいいです (Omae is a little bit aggressive, hahaha, so I'd advise using either anata, kimi or no subject at all, specially for this sentence ^.^).

Hey there!

Everyone starts somewhere, so as they say, baby steps. You registered here, so that's already a huge step, so don't lose your motivation. I'm also currently studying Japanese and I guess I don't know enough to teach anyone, but I can share some of what I know.

Kanji are basically adopted Chinese characters. They can have either one syllable or many, depending on the specific character, context and accompanying kanji. They are often used along with katakana and hiragana to make the text look more cult or professional and improve readability, since something like 僕は大阪が大好き is much easier to separate in meaningful parts them わたしはおおさかがだいすき. Different kanji combinations form different words, usually based on the meaning of the parts that compose it. I could try explaining more about it, but I'd rather recommend you to find a nice, experienced language exchange partner.

Anyway, good luck my friend! Hope you find a partner soon.

Regards,

Matheus