I always had a kind of 'I'm spiritual but not religious' faith but nothing concrete. I became a Christian in my 30s and my life completely, completely changed. I felt the presence of Jesus in my life and God's power and love.
A lot of what people are saying about the carrot and stick don't relate to me. It feels like a real, loving, authentic relationship. The more God answers my prayers, the more I trust Him and I don't panic or stress like I did in the past. There is a solid rock of love inside me that I can tap into at any point, day or night. I don't feel like God is some kind of Dr Evil watching me through Spycam, ready to dole out the punishment.
It feels more like a beautifully calm and patient relationship with a loving parent. I fell in love with Jesus, with His person and I have got to know him through prayer and the Bible. It's the most beautiful relationship and I have such a sense of calm and protection that I never had before.
Being a Christian is NOT easy though. In fact, in many ways it makes my life more difficult. There are many things that I didn't care about before but which make me uncomfortable now and many of beliefs are counter-cultural. There's always the chance that people will laugh at you, reject you or get offended by these beliefs. A lot of people engage in pretty low key 'dodgy' things; telling white lies, gossip, fiddling the system and I have to step away from that. People get really annoyed and think you're judging them.
Thankfully I have managed to bobble along in life without ruffling too many feathers, but my faith comes first and if it comes to it and I have to decide, God comes first.