Are there any laid down guidelines to enrich and strengthen Christian faith?

Broadly here are a few points which can greatly help to strengthen us in our faith:

1. Know the steps and daily chores of how to persevere in maintaining and enriching one's own faith. See the link provided in comments from @Wikis.

2. Teaching skills and imparting an in-depth religious knowledge to defend the faith.

3. Making known to everyone which are the susceptible areas where Satan would initiates his lure, for making us weak in our faith.

4. Making aware of the uniqueness, strong points and truthfulness of Christianity.

5. Teaching the hollowness, deceptiveness and errors in other faith. This aspect has been woefully and foolishly kept out of syllabus of our Catechism classes and we are paying a heavy price for it. On the other hand other faiths are solely dependent on this aspect for their propagation since they hardly stand an in-depth scrutiny of their own faith and prosper by deceptively propagating negative information about our faith.

6. Imparting training on how to strike a conversation with people of other faith so as to make them aware we are on much stronger ground and where they falter readily.

7. Teaching and exhorting Christians to live their faith in their daily dealings with outside world, especially with non believers and in public. They need to be taught for not to feel awkward in practicing Christian faith in public places.

8. Teaching Christians to be good example to people of other faith so that as Jesus said ' world would know that we are disciples of Jesus' and not to give an impression that we are not practicing what has been taught by Jesus as was once commented by Mahatma Gandhi.

I am not aware of any official document on similar lines from any of denomination. It highly probable that something on these lines would definitely be available somewhere.