I have no idea how I was supposed to win

My most recent game as of this post, I was playing adc as with a support against a and support. I tried to play, but constantly ganked and Jinx scaled off of kills while I had focused on trying to farm because I died to Ekko. Adc is not a role I play often and I made this post because I have no idea how I am supposed to win lane whenever my friends want me to play different roles. I've even become increasingly frustrated this week that I make mistakes and can't seem to stop making them.