Hi. I'm stuck in the Ancient bracket (in the past I was mid-Divine) and I only queue as p4/p5. Games in this bracket seem to be more or less solely won based on whether or not the carry can fulfill his role. I often win games, and have large win streaks, but then I'll lose a sequence of games because my carry is a potato in each match. Some games I'll even dominate the lane for my carry as a support (like 3-0-6); after which I'll roam to gank other lanes (but not abandon the carry), yet my carry plops in the mid/late game and we lose. (I also recognize that a lot of the games that I win are because the other team's carry is a potato.)
How can I win games even with a potato for carry? I want to get into the Divine+ bracket so I don't have to worry about this issue as much and can enjoy playing games where people know what they're doing for the most part.
Source: https://www.reddit.com/r/DotA2/comments/t5aieq/how_to_win_ranked_games_when_carry_is_potato/