Well, only a pawn, is not only a pawn. You lost king pawn, and your King is naked after move 10. Pawn is only a pawn when you gambit and gain tempo and attack for the pawn.
Someone sad that bad plan is better than no plan. You can't just develope in sake of developing. You must have some idea why you placed bishop on e7. Why Knight here and not there. Start planing from move 1.
Queen pawn game..which went wrong I am black...