You obviously are a newer player, you are simply getting the intro to a harder GW, which means your roster is teeter tottering from beginner level to mid level compositions. As stated through the forum, Gw is not garunteed to be beaten daily, it is a scaling test of your roster and squad design skills. You are entitled to try out the table daily, you’re not entitled to win everyday until you develop a broader roster versus a tall narrow roster so to speak.
There is no fat needing trimmed, you however need to develop your squads a bit more and possibly you need to develop your b and c teams closer to your a team,