STUDENT: Title;English performance assessment for speaking
CORRECT: Title: English Performance Assessment For Speaking
EXPLANATION:

a. When writing a title, the first letters of each and every word should always be capitalized.

STUDENT: I have English performance assessment for speaking.
CORRECT: I had an English performance assessment for speaking.
EXPLANATION:

a. The action has already taken place in the past so it has to be "had" instead of "have".

STUDENT: I have to introduce myself in English.
CORRECT: I had to introduce myself in English.
EXPLANATION:

a. The action happened in the past.

STUDENT: This is my first time to have English performance assessment.
CORRECT: This is my first time to have an English performance assessment.
EXPLANATION:

a. The noun is countable and you are pertaining to one assessment exam only.

STUDENT: I was so nervous.I was worried. So I practice very hard.
CORRECT: I was so nervous. I was worried. So I practiced very hard.
EXPLANATION:

a. The action has already taken place in the past.

STUDENT: The outcome was successful. I'm very happy now.
CORRECT!

Emily, no wonder you were very happy. I wish you more assessment exams!- I meant, more happiness to come!kkk