Homeschooling Schedule?

Hello, I homeschool myself, I know that the normal time for school is 6 hours?
I have made myself various schedules, but when I lose track and don't go along with the schedule I get irritated and end up balling it up and throwing it away and making a new one.

My last schedule was this, I was wondering if this is a good schedule or not?

8:15 - English

8:45 - Spelling

9-15 - Social Studies

9:45 - Math

10:15 - Language Arts

10:45 - Reading

11:15 - Language

11:45 - Solar Science

12:15 - Lunch

12:30 - Bible Study

1:15 - Writing

1:45 - Testing (if needed)

2:00 - Finished

I was just wondering if that was a little too much or too little for a 6th grader