Your lvl 2 is one of the strongest in the game. Kill when you get lvl 2 (if you took ignite). If you cant just farm and get big (if you took tp).

Roam mid and into enemy jg. Try to pick up kills.

Split a side lane and bush gank anyone that is alone. Make sure you upgrade the trinket so you can have 3 wards on your side lane to see who is coming to challenge you.

If the enemy team is grouping and your team cant hold towers:
1. Grab a pink
2. Pink a bush
3. Do a legendary cheese bait ambush.

It's really hard for anyone to 1v1 yi. The enemy team will need to send 2/3 to kill you. Have your team hard pressure.

Not really good at team fights.
1. Wait till everyone blows their cc run in and penta kill.
2. Type in all chat "R U OK?"
3. Drop that disrespect and spam dance over their dead bodies.