It’s hard, I’d say impossible, to be growing in your walk with Christ if you’re not regularly spending time with Him in His word or serving in the church or community.
Gratitude should be the primary motivation of living out the Christian life. A person needs little added incentive for being friends with someone who saved their life. Christ’s death and resurrection should provide all the motivation we need to serve Him. If we need more incentive, we have failed to grasp the most foundational logic of the gospel.
So if you’re not spending time in the word, in prayer, in worship, and serving others, why not? Don’t do those things out of guilty but out of humility to the One who gave you all.