I don't know if it's really steps per-say but here goes
1.) Raised as a JW since birth
2.) Started learning about Evolution in school in 5th Grade after finishing the Evolution book the previous year
3.) Evolution sounded very reasonable and had evidence but I thought it was all misleading evidence until...
4.) Questioned myself why I was a Jehovah's Witness and Why I served God
5.) Thought that I might not have the whole truth regarding many things and started learning WHY people believed certain things instead of WHAT they believed (and subsequently how to circular reason them into having doubts)
6.) Learned all the evidence involving evolution, once I learned about abiogenesis a HUGE pillar of my belief that evolution wasn't true came crumbling down. Once I found observed evidence of speciation the other pillar came crumbling (learning that not only had macro-evolution occurred but it had been seen was devistating)
7.) From then I became agnostic for a while, when I was searching for the true religion I started asking for proof of various beliefs. Once I applied that same process to religion itself I realized it was all BS.
See folks a perfect 7 step process according to Revelation I must be divinely inspired :)