Starting running back...?

Well, if the LB and D-line got to you in the backfield, it definitely was the o-lines fault at least a little. Honestly, my biggest tip would be that you have to just add muscle and weight to your body. This is tough, though, because you're in eight grade. Seriously, though, being 6'2'' and only 145 is almost a disadvantage...there is so much of you to tackle.