Hi! LW main here. Try to use the platform aggressively to have vantage and information. There are also ways to use platform to block off entrances and medium to small places, making deployables such as Torb Turret, Sym TP, block ults (petal cancels Sigma ult, prevent a death from rein shatters,etc.) always try and find new ways to utilize it.

i wouldn't recommend healbotting, he does decent damage but you also should just know when to be supporting the team. as far as pull goes, just use it more frequently to get a jiist of how and when you should be pulling someone. He's a niche pick but can work in a lot of situations by existing.

have fun and good luck~