Making your thoughts and feelings known to God is necessary to get into a meaningful relationship with Him. You do not need to pretend to be happy about something you are not. God is your safe space and sounding board, you can tell Him anything and He will not judge you. Speak to God with an open heart and watch as He gives you peace.
A prayer of David.
1 Hear me, LORD, my plea is just;
listen to my cry.
Hear my prayer—
it does not rise from deceitful lips.
2 Let my vindication come from you;
may your eyes see what is right.
3 Though you probe my heart,
though you examine me at night and test me,
you will find that I have planned no evil;
my mouth has not transgressed.
4 Though people tried to bribe me,
I have kept myself from the ways of the violent
through what your lips have commanded.
5 My steps have held to your paths;
my feet have not stumbled.