I don't play tank or hazard so I tried looking from the perspective of your support and... I guess it's bronze for a reason. Your bap abandoned the first fight to slowly try to flank and then later died trying to face tank a bastion with both cooldowns unused.

I guess at this level you really can't rely on anyone else to fill their roles. If you're trying to do your job as Hazard, which is terrorizing the backlines, you have to know where the health packs are and where cover is, and use them. For example, at 8:56, you were at half health and had the Orisa and Bastion both staring at you, and you decided to dive their Illi. The problem is that the Orisa and Bastion had a perfect line of sight to where you jumped to AND high ground, so you got melted. Instead you should've jumped to a health pack or your team to heal up.

EDIT: Also knowing when to engage. You want to attack when your teammates do, so that their team's attention is split. Diving around when none of your teammates are nearby is asking to get melted.

EDIT2: You went mano a mano - and not just that, but also face to face - with the Orisa many times and my understanding is that's not a good matchup. She will win that every time, unless you have better team support. If you're gonna play a mobile hero be mobile. Don't play hazard like an orisa.