Ok, learn your weaknesses and strengths. Whether you're better at a bow w/ infinity, bow w/ power, bow w/ punch, sword w/ smite, sword w/ sharpness, sword w/ fire aspect. Also learn whether you're more of a sniper, heavy, soldier, or pyro.
Strengths and weaknesses? Well, I'm not exactly a sure shot with a bow but with.an infinity enchantment I'm sure I could manage. As for a sword, I have good accuracy and power and I benefit from fire aspect.I am cool under hostile fire and can form combat plans on the spot.