I believe the factors that help us grow in the faith include regular church attendance, Sunday School, fellowshipping with other beleivers in both social and learning environments, going on missions, having an accountability partner, daily Bible reading, daily devotionals, and prayer. One Biblical example I think of is Daniel where he spent time with God at least three times a day. We also need to be aware of the company we keep, the food we eat, the drink we drink, the rest we get, the books we read, and the media we listen too and watch.