Trust does not always come easy.
Always it starts with a decision and will take a conscious effort.
Trusting God is very much the same.
You will have to learn to stop yourself in the middle of certain thoughts, worries and figure-out-sessions and say...I choose to TRUST.
God knew it would not come easy so in Hebrews 12:2, the bible says 'looking unto Jesus, the author and perfecter of our faith'.
The phrase 'looking unto' is from a Greek verb Aphorao
It connotes to look away 'from' and 'stare at' what He's trying to get your attention on.
Refuse to worry! Rather trust in God consciously to carry you through whatever the challenge is. Stop trying to figure out every action, word, gesture...just TRUST God to help you go through whatever challenge you face.
Remember the song? You can start by singing
"Trust and obey
for there's no other way
To be happy in Jesus
BUT TO TRUST AND OBEY"