Help how to win cup games

[Althaf Yaseen Shibli]

I do not understand what to do to get through in cup games here are my cup results from previous seasons

Season 3 home 2-1 away 0-2. Me 24 opponent 29(qualifying round)
Season 4 home 2-2 away 2-3. Me 29 opponent 35(qualifying round)
Season 5 home 2-1 away 0-2. Me 38 opponent 37(qualifying round)
And this my current season
Season 6 home 1-2 away 1-0. Me 42 opponent 43(preliminary round)

This season home possession 65 -35, shots 26 -13, shots on target 4-6
Away possession 61-39, shots 20- 15, shots on target 6-5


I play 4-2 mc-3w-1 or 4-3w mc-1-2,4-3w mc-2-1
Normal mode
Own half pitch
Mixed focus
Force counter attacks ( switch on or off according to game situation sometimes).


I don't know what is the problem I just lose out on 1goal difference always it's so frustrating wen u lose so close . If I was thrashed by the good margin it's ok I can't take that but this is weird . Is there something I am doing wrong if there is plz help me out... I am non token buyer so I rely on money to buy better players and exiting cup soon doesn't help....plz give ur ideas and thoughts.