Well, the first thing is, don’t expect it to be easy. You can’t expect that. We are the church militant, which means we’re the ones still fighting. In particular, fighting against our sinful natures. It must be a real struggle, a real fight. That’s what makes choices matter. If it devotion cost you nothing, what would it be worth?
The second thing is, to pray. Pray a lot. You don’t need to spend hours and hours on your knees, but spend time talking to God throughout the day. Say short prayers over and over again. “My Lord Jesus Christ, the only Son of the Living God, have Mercy on me a sinner” works well. Do your best to avoid all the occasions of sin you can. Keep yourself away from bad influences. When you are tempted by sinful thoughts, think of Jesus Crucified, suffering for you.
Depending on how spiritually mature you are, you could try abstaining from meat on Fridays, or anything else you feel appropriate. Begin teaching yourself that discomfort is ok. You won’t always be happy but if you start to train yourself to make sacrifices and by doing so, learn that God comes first, then things will get better. You’ll become a veteran solider in a very real war. But it will always be a war, nonetheless.
