Everyone is going to tell you a different formation as different formations work for different people!, my golden rule of thumb is to pick a formation and stick to it, just keep upgrading the quality of player!, use all 22 squad players, have at least 2 players to every position so you have cover for injuries or suspensions!. You are at a crossroads!, whether to stick or twist!, I personally dont like that formation you have but other people might be able to throw some good reasons for using it, I use 3-1-4-2 and have done for the last 7 seasons to good success! DL,DC,DR,DMC.ML.MC,MC,MR,ST,ST, I like it because it looks balanced and has players on the flanks, it gives you the option to play 3 ST or 4 at the back by putting another DC on!,. There are many more formations you can play altereing 3-1-4-2 while watching live matches so I recommend trying that! but its your choice!, Just remember to have a good average young squad, train them but not over train them!, try to get players thats kicking foot matches there positions, the orders you can play about with once you have a settled team, just dont keep changing formation over and over again or you will get nowhere.