My favorite place is house.
I have two reasons why I like my house.
First, I like to sleep in the bed while hearing to my favorite music.
Second, I like to spend and relax, have happy life in my house.
As the reasons above, I like my house the most.
こんな感じでしょうか?海外の英語の先生に習った書き方です。英語の文法は合ってるか分かりませんが、私が準2や2級を取ったときはこんな感じで書きました!妹さん、頑張ってください!