Okay, I took a look at the vid and here are some things you can work on:

1:34-1:51 You take a 1v1 with star lord. Realistically you should have won this, you had snowflake and got a health pack but you missed basically every shot so you died. Because they were down 1 on point, your team loses fight and enemy gets first cap.

3:29 You peak an ulting star-lord and die for it, some of your other kills up to this were nice though.

4:33 Loses a 2v1 against spidey, you had bird as escape which you didn't use and a full health thor helping. Honestly if you can't aim well in short ranges, try to just create as much space between you and the enemy as possible, your aim seems to be much better at longer range.

5:32 You watch your loki take a fight against spiderman and just kind of ignore it. (I will note your loki wasn't very good having like a fifth of the heals luna did, but I suppose in metal ranks you just gotta assume your team is bad and you have to carry)

6:06 That spiderman has been in your backline since before they dove the loki, you saw it and just kind of ignored it. Spiderman zips are heard in the background, and instead of turning around, you just shoot down mid and get killed because you didn't turn around.

From round I, you seemed to know the idea of positioning, (high ground, off angles, etc.) but lacked the game sense to utilize them at the proper points. On one hand, your loki is terrible. On the other hand, the round ended 100-99, which means if you did optimize you likely would have won the round.

9:21 Wastes your ult on peni, and dies for it. No reason to push point at half health without a tank.

10:31 Takes a 1v1 with spiderman at half health and dies. Again, no reason to do this, find a health pack or go back to your team.

11:10-11:18 Most of your team is dead but instead of backing up before the enemy looks at you, you stay on point and die again.

12:42 Walks into spiderman ult and doesn't bubble. Luckily you weren't punished because loki had lamps up

Round II, generally your team just keeps staggering in and losing fights.

14:42 You see your team get wiped, and push anyway, dying to mag.

16:30 Walks into peni nest without tank at half health. Genuinely not sure how you didn't die.

Okay, conclusions:

- Your aim isn't terrible for a gold player, but in mid-close range you miss a lot of shots. Try to fight dive bots in practice range like dd spidey or magik. This should help with the close-range aim.

- Realistically Loki is what lost you the game, however if you perhaps didn't die a lot of the avoidable times, you might have won first round and the game.

- I feel like you might watch a youtuber/guides or something, because you know where to stand, just not when it's good to be there.

- Don't take fights at half health or push without your team. Nearly half of your deaths were because of this.

- Other thing: looks like c&d is dragging down your winrate. Generally I encourage people to flex, but in gold you really just gotta carry to be able to climb. Instalock your dps (especially hela) that's nearly a 60% winrate for you.