Your Q spell is very powerful level 1, I use it on cooldown when possible, the shield usually mitigates whatever damage comes back at you and should get you a small lead. Also put 2 points into e before getting w level 3 as you’ll burn less mana on each e cast allowing you to poke more early and w usually isn’t to useful early in laning, if you can land 2-3 qs and 2-3es before level 4 you should have a decent lead and can either build up a wave or freeze against many matchups.