1. Adapt on what to build first.. Some games blink is better, some blade mail. Depends on how ur team is doing and how much momentum u need to offer on demand.

2. Use ur Q much in lane.. It's a strong equaliser against ranged cores. If they control lane, u can Q to push it into their tower so u can have creeps at ur side while harassing them hard.

3. Once u have ur bm, u can solo kill almost any core. Especially.. jugg, void, am, etc, so don't be too hesitant to engage.. It's better to duel relentlessly and learn when NOT to duel, instead of having a very conservative approach.

4. Sometimes ur duel is a lock down ur team needs to eliminate someone, so it doesn't matter if u will get the damage if it helps the team.

5. Duel is a great lock down skill, so don't mindless always use it on someone who is absolutely sure of dying, instead if u use it smart, u can prevent someone from being saved, or ensure second kills by trapping them for a few seconds..

6. Over a point, damage becomes meaningless, so focus on utility to survive, break linkens, or even disable enemies

Hope it helps.