Other advice than "get good"? Learn the silver meta, I've expetienced it as my first account was placed in low silver.
You'll notice the pirate ship and torb/sym comps are more common in bronze to gold than other tiers, this is because these heroes can easily tear appart an unorganised and lack of mechanical skill team. Nobody ever dies to d.va's ult even in bronze so you'll have to learn how to counter these heroes and spamrat/reaper, DPS that are the ones prone to carry.
Winston is severely underrated in low tiers and an ok winston can wreck pretty much a "what can be considered good in silver" DPS player (except for reaper/bastion), he also counters the sym/torb cancer so he for sure is going to take you places.
Silvers also struggle against Roadhog, learning him and Ana (to counter him) is very useful as well but make sure to play the pork when you've a main tank otherwise you'll be just another bullet magnet/walking ult charger.
Also pharah, since short/mid range heroes dominate the silver meta (i.e. rein/reaper/junkrat/sym/moira/etc.) but try to practice her as much as possible because, if you don't believe it, there are good mc crees/hitscan/zen players even for silver standards. So if you don't know the basics like staying mid-air you'll get wrecked.