If you duoed to get to your rank, please just play support
If we're all plat and you duoed to get to plat while your soloQ elo is lower than silver, please just play support, please.
We don't need a silver mid laner who doesn't know how to ult as Yasuo when the enemies are knocked up. Just be a good support and go 0/10 without depriving the team of a useful late game carry.
Here are the things you'll need to do.
Pick a support with a ranged heal or ranged harass and take random assists. Don't take the kills from the carries. Do whatever. We'd prefer it if you warded, but it's not required.