Correct me if I am wrong, but I assume that you are either fighting for the Caldari or the Amarr. Based of of this assumtion, I can explain why you are experiencing these results.

At the moment, and for the past few months, highly skilled players have been, and still are, squading up and fighting for the Minmatar and/or the Gallente simply because they like the gear in those factions. Due to these squads of elite players playing on the Minmatar and Gallente sides, the Caldari and Amarr players have been stomped over and over again, which is incredibly demoralizing. Now that this has happened repeatedly, most people who play for Caldari or Amarr don't try to win, as they know it is most likely futile. They either afk or spawn in cheap gear to minimize losses; This allows the Minmatar and Gallente players to go all out as they probably will not die much.

It doesn't matter how good you are, the people who play for Amarr and Caldari are almost always useless. There is nothing you can do to help this if you are going to play solo. FW is a game mode for organized squads, so you can't expect you to make a difference all by your self.

If you want to win FW there are two options. Squad up and queue sync, and/or play for Minmatar/Gallente.