Stop blaming trolls on your inablity to climb.......
It is simple statistics. If your not a troll your team is less likely to have a troll as there are only 4 spots open. This means that statistically you should come out ahead in the long run which means that YOU WILL CLIMB to where you belong EVENTUALLY. This is simple math and cannot be disputed. Now it might take a huge amount of games and might be disheartening.
HOWEVER trolls are a excuse when you lack the skill to climb. The only person who is to blame for your end ranking is yourself. I do understand that not everyone can play the 100's of games in order to actually rise to where you belong. And I accept that, but this doesn't mean it was because of trolls. This is because you prolly have a life outside of League. And if so THAT IS A GOOD THING.
If you cannot climb if you are stuck in whatever league your in after 100's of games this is where you belong. This doesn't mean that over time you won't become better. This just means at your current skill level (mechanically/knowledge) you belong in that tier.
There are people who do to lack of time belong in a higher tier. There are those who duo and your COMBINED skill level might be lower the your own.(if your carrying a friend) However trolls are not the reason your stuck in whatever tier your in. Doesn't matter if your B5 or D1 you will eventually get placed where you belong if you play enough games.