Hi Logan, thank you for doing and submitting your homework.

1.Iam so excited.
Correct: I am so excited
>> Don't forget to put space between the words.

2.My brother likes music.
CORRECT!

3.I am so cheerful,when I so some soccer.
Correct: I am so cheerful, when I watched soccer game.
>> Watched is more appropriate word in your sentence.

4. My broter is so noisy.
Correct: My brother is so noisy.
>> Be careful with the spelling.

5. Can you play some instrument.
Correct: Can you play some instruments?
>> When you ask questions don't forget to use question mark ( ? ) at the end of your sentence.