You can climb out playing
. I've done it, she is my most played ranked ADC.
Laning Tactics/Mechanics are a big part of it but its not the most important thing.
The most important thing is actually to safely push minions and push/destroy towers at all times. A big part of who wins Silver games is which team safely attacks the minions and the towers more without dying. It sounds like common sense but you'd be surprised at how many free waves are missed and how players don't push the map/press towers when they should be.
After laning, look at the map and constantly ask... "Can I safely attack these free minions? Can I safely attack this tower?" And always DEFEND your towers.
You can climb on any champion with enough wave clear if you just move around the map doing this. Its like a game of hide and seek where you safely kill minions (and get tons of gold and EXP) and destroy towers where you run as soon as 2+ enemies go missing on minimap and you sense they are close. You will get a 6th sense from this as you watch the minimap more and more and practice enough.
Once you have this skill, it doesn't matter who you pick so long as you can Push.
The other thing is... Teamfighting is Overrated. There are maybe at most 4 team fights that actually determine the game... rest of the time, you are better off AFK farming/pushing.
I flew back to NA, played from S2/3 to Gold V in 2 weeks. I spent maybe 60-80% of most games "AFK farming" (really just safely pushing the minion waves to generate pressure and taking towers while running away when I sense they are coming and not dying). You can play Jinx, MF, Viktor... it doesn't matter who. You'll just naturally get more EXP and Gold and generate more map pressure to win games.