I'm so scared. I am guessing you are looking for a way to turn "I am" into the contraction: I'm I'm so scared.

Hello Jamie You wrote I'am. We do not need the apostrophe, forming the contraction, when we write "I am". It is only in the use of the contraction, (a reduction by removing the vowel "a") that we employ the apostrophe. Thus, I AM - I'M. --Warm Regards, Bruce