For the desires of the flesh are against the Spirit, and the desires of the Spirit are against the flesh. They are opposed to each other, to prevent you from doing what you wish. The baptized heart is a spiritual battlefield. There a war rages between our inborn sinfulness and the Holy Spirit. And don't think for a moment that this war is pleasant or easy.
War never is.
If you want to be comfortably complacent with your sin, then don't be a Christian. Don't get baptized, if you want to be a draft dodger in the war against the sinful nature. To be a Christian is to literally be at war with yourself. This means tension and conflict. The sinful nature actively opposes the Spirit.