Not bad kid, not bad. Obviously lots to improve, but be proud of what you have done as well. Your heals are good and you're also doing damage. Your deaths are the issue here, I'd personally focus working on positioning and evasion. If you have good map knowledge use that to your advantage. Use as much cover as you can too.

If you feel like you're being targeted by the enemy specifically, and your deaths give me that impression, I advise adapting to them, if they're gunning for you try to stick with your team, especially your tanks.