It's a long way off, but inside it
There are quite different things going on:
Festivals at which the poor man
Is king and the consumptive is
Healed: mirrors in which the blind look
At themselves and love looks at them
Back: and industry is for mending
The bent bones and the minds fractured
By life. It's a long way off, but to get
There takes no time and admission,
Is free, if you will purge yourself
Of desire and present yourself with
Your need only and the simple offering
Of your faith, green as a leaf

R S Thomas (priest and poet)

Approaching/re-aaproaching Christian faith

It is difficult to say anything helpful about this matter without muddling things. 

The first claim is that when questions of religious faith stir in the human heart, the Christian tradition suspects that they are stirred by the Holy Spirit. That is, they are a response to the movement of the Sprit in the life of the individual. Therefore, explore them and be open to them.

The second is that waiting has a stature and purpose. Be prepared to not know and to wait, as patiently as your temperament allows.

Explore the tradition - the writings, worship, and the lived experience of a wide variety of Christian people (you will find links and some suggestions elsewhere on this site).

Practice the business of prayer.

Find someone who may be able to help and advise - either a one-off conversation or the possibility of their acting as a soul-friend.

Learn, in your relationship to the world, to be thankful. Welcome irony and humour as intimations of the divine heart.

Weep (inwardly or outwardly) with the world’s (and your own) suffering.

Bring both the humour and the lamentation in to your prayer - or rather, come to see them as prayer.

Practice love.

Be prepared to risk everything, including your sanity, in order to know the God who, it is claimed, makes all things new.

'May God deny you peace but give you glory' Too much Christian talk and worship accords peace too high a priority.  Or rather, it defines peace in the wrong terms - in comfortable and sentimental terms.  This quotation - “May God deny you peace but give you glory” is from Unamuno and points towards a truth that mature faith should welcome. 

"You can safely assume that you've created God in your own image when it turns out that God hates all the same people you do."
(Annie Lamott, Traveling Mercies)