I try to take responsibility for my deaths. It’s all well and good blaming your team, you don’t have to question your own ability or in game choices, but this is how you never improve.
If you’re not getting enough healing, (according to you), then you should adapt your play to be more defensive, use cover, play around health packs etc.
If your rank is over aggressive or too passive, again, adapt what you do, follow them in, play defensive etc.
Question your own choices, adapt your play and accept you may have made a mistake or two yourself.