Firstly, trust in God, in all things, turn to him in everything, make that a habit, talk to God constantly about everything even seemingly trivial things, like what to wear, eat or buy, everything. If you talk about the small things, you will naturally talk about the big things and then fleeing to God for all things, will be as natural as breathing.
Which brings me to the second thing, you cannot fail, if you pray. Pray as much as you can, formal prayers like those of the church, mass and meditation as well as the casual friendship prayer I already mentioned.
Next stay in a state of grace, that is make use of the sacraments, when you sin go to confession, get used to it, just like exams, doctors, dentists, eye tests etc. add it to the list of things in life that aren’t the most fun, but you need to do them and pretty soon, you wont mind it so much. It is a fact of life.
And of course don’t miss mass. Then go about daily life and you won’t fall away from Christ and his Church because he’ll guide you. You’ll be listening cos you are praying and you will be able to hear him as you are in a state of grace. He will guide you and love you no matter what you do.
But if you dont pray and you aren’t in a state of grace you may not hear him and you might not care cos you are so blocked up with sin. So those two are important.
He will never leave you though, so if you fall from grace and forget to pray then just get up and go to confession and begin again, he’ll be there with his loving arms waiting for you. Believe me I know. God bless you