Harder than you are throwing now. 8th grade doesn't matter. How hard will you throw as a senior in High School? Will you work hard to gain velocity? Will you stay healthy? Will you still play? Can you pitch? Do you have a "plus" curveball, changeup, slider? Can you handle game pressure? How do you handle setbacks? Can you make grades? Are you a hard worker? Time will tell. What can you do to set yourself apart from all the other hard throwers? Keep working at it.