stride length

im 14, 5’8 and stride 5 feet 8 inches exactly. this good or bad?

It’s fine if it works for you and enables you to be effective. I’m always cautious about telling pitchers you MUST stride X distance, because I think everyone has a stride length that works well for them – and for them only. Generally, however, stride lengths around or greater than 80% work very well for most pitchers. I’m 6’3", but I strided out about 5’11". Some guys are significantly more, but not many 6’3" guys are less than 5’5".