Is this a good paragraph to quit a job?

Dear \*\*\*\*\*\*, Thank you for the opportunity to work with you at \_\_\_\_\_\_. Unfortunately, I won’t be able to continue my employment there due to family related conflicts. I appreciate the help everyone gave me while I was there. Thank you and I am sorry.

Btw i’ve worked at this fast food company for 2 days. The reason I really want to quit is because the job is really not for me and I don’t think it could fit in my schedule since school is starting and I have after school activities.