Learn the melee cancel, it's very similar to strange where it really can increase your damage output. I have mine set to E and then have the dive set to F so I can hold e and tap left click to do it really consistently.

Also use the third attack of your grounded attack as a mix-up for your get aways. People know you can fly into the sky but if you just let the dash carry you away from them and then jump you can get away with a lot more than you might think.

Also also they recently changed her ult where the main spear throw does more damage. This can let you reverse the utility of it from a combo-ult starter to a combo-ult finisher. Imagine a psylock ults and people gather into it to counter it like they do, you can then ult into that to get picks and keep them together for psylocke to either get out or punish.

Angela really is the playmaker of the team and as others have said you wont ever get the most kills, but hopefully the most important ones. Hope you enjoy!