Im a new player i have about 4 hours on Reinhart and love playing as him but I wanna learn vendetta as well since she feels similar in a way

Everyone says she is garbage and I shouldn't play her but I have the most fun on a character like that are there any tips for someone brand new to use on characters like her

I sorta know she is best when going behind the enemy team and getting in and out and trying to take out supports but I wanna know if there are any other things that I should be doing

So far ive only played 3 matches as her and usually have had an average of like 14 kills and 8 deaths I know I could do something better overall