Am i weak?

What is the lvl 50-60 average damage range for a dawn warrior? mine is 668-1518
Am i weak?

Have you not maxed Mastery yet?
It's not necessarily weak, although it isn't really too great. Damage doesnt matter much in the early levels (in terms of range); what matters is KO ratios. What lvl is your Soul Blade?

29 soul blade, im maxing mastery now.
I just saw another guy lower than me have like 900-1600, he didn't have any godly equips

What's your base dex? If you have points invested in that, your damage will be lower.