Tbh, my previous post was focusing on 3v3, since I don't play 2v2. However, for 2v2, I think you can play with a healer partner, you basically use necrotic strike to create a kill opportunity, since the damage will sink in b/c of healing absorption. For example, MW is a good 2v2 partner for you, because of the incap CC. During the CC window you can sink in the damage and then continue applying necrotics and after that you can swap to the healer (healer will be busy trying to top the low hp dps). Just don't switch all the time, maximize your efforts on training someone and then making a crucial switch to blow your CD's with your partner, it will get better in time.
Good luck and thanks !
Amazing. Thanks for everything!