Theres lots of reason why your losing!, are you training players befor a match? DONT!!!!, only train the whole squad after the last match of the day, Make sure your team have at least 90% condition and good morale although you can get away with morale being low, check all players are in the correct position!, DC and MC swap around so if your playing them on the right switch them to the left!, make sure you play substertutions at least 1 per game!, dont play the exact same team more than once in a day if possible!, rotate your players every few games to give them plenty of rest time, tactics!, look at your orders and see where you can tweek them, if your defenders have red arrows on take them of and try none or blue, if your playing 3 at the back try playing 4!, try to play two strikers and always have a minimum of 3 midfielders!, play a DMC for extra cover if possible, use the flanks as much as you can DL,DR,ML,MR!!!.
Set your match play orders to normal or attacking, mixed passing,close down own half,tackling normal, or hard,mixed passing style,and zonal marking always!, dont play force counter attacks and play offsides, also check the age of your players! older ones will tire quicker and especialy if you have your orders set to close down whole pitch!, when buying new players look for the HOT PROSPECTS as these are usually fast trainers and you get good value for a 3-4 seasons!, you definatly need to show us a screen shot of your team.