Writing to host family ?

I'm going to stay with a family in July and I need to write them a letter. I've wrote it but it needs to be in hiragana and I'm struggling to change it.

The letter:

ホストファミリーの皆様

こんにちは

私の名前はジェイミーです

私は十九歳です

私はイングランドに住んでいます

私は大学でビジネスを勉強

英語を話せますか? わたしはにほんごをすこしだけはなします

私を受け入れてありがとうございます。それで、君に会うことを楽しみにします

What exactly are you struggling with? Surely if you can write those kanji, you can write the corresponding hiragana...

As it is, it is in a good mixture of hiragana, katakana, and kanji. The only part I would change would be the very last sentence:

それで、君に会うことを楽しみにします

You would not want to use the pronoun 君 (for "you") to refer to your host family, so
皆様に会うことを楽しみにしています (I am looking forward to meeting with all of you.)
... sounds polite and proper :)

True, any reason you need to change to all hiragana, for one thing, and for another, you are struggling to figure out the kana after writing all this good? :)