Play very safe early and focus on Leveling up. Farm with Q if you have to and try to poke with it as much as possible.
Use your W for trades, especially against melee champs.
E + Q combo is the most obvious but also best way to trade. If possible you can walk up to hit the W + Auto Attacks but don't force it and lose the trade.

NEVER TRADE TOO LONG

You want to do your combo, maybe procc Electrocute and reset.

Always keep an eye on where the enemy jungler is. You are super vulnerable to ganks - especially during your trades. Once your fear is gone, you have no self defense.

Unless you are really fed, it will be very hard to solo kill your lane opponent. Most of the time he will be low but not die. That's why it's important to use your ult cooldown as a roaming timer.
Push your wave as fast as possible and look to gank.

In Teamfights, stay in the backline and use your E and Q to catch people with your fear. Your ult only gets used to engage on people that got caught off guard.

NEVER USE YOUR ULT RESET JUST BECAUSE U HAVE IT UP
- Specifically the 2nd part, the dash. If you get into a bad position, it's over.

If you buy Zhonyas and have it ready, you can be the engage for your team. But don't try to use your whole combo after jumping in. R + W for the fear is enough. You have to follow with zhonyas almost always so you don't die and give your team a chance to follow up.

Good vision is key to catch targets. If you don't set the vision up, play around the vision your team built. A sudden Vex burst in the jungle is hard to counter.

Try to use ult on low health enemies to get more resets.

Level 2 Cheese:

You need the EXP from the whole first wave + one melee minion to reach level 2. Walk up right before that minion dies so you are close to the enemey when u reach lvl 2 and use everything on him. Don't force a kill but most of the time u get a flash and the enemy ends up low hp.
But be careful that the enemy doesn't also reach lvl 2 at the same time. The only advantage u got is the extra skill in that moment.
Since u mostly start with E, your second skill in that case can be the W if you play against a melee champ and can walk up close enough.

In general for midlane:

- Try to reset on a cannon wave (the next wave that arrives has a cannon minion).
- Don't randomly use TP, only if you would miss minions to your tower otherwise.
- Use your skills to push a wave if you want to roam. It's quick and you need the time to roam.

Late Game Tips
- If you play TP, sidelane opposite of where the next objective spawns to draw enemies to you. Then TP to the objective to help the team. You have a numbers advantage then.
- Follow your jungler around to find picks before an objective.
- You can push a sidelane and immediately walk back to the team to look for picks.

You are a midget with only one purpose: QUICK DAMAGE
QUICK GANK, IN AND OUT, SHORT TRADES AND NO 1v9 MACHINE.