There is no mystery to journaling. It is just writing to yourself or to God. It is no one's business whether it is good, bad, neither or nor. It is not about penmanship, spelling, or grammar. It is about you communing with God.
Years ago I began to keep notebooks in which I would write down my daily devotional Scripture, some comments, and often a prayer. About 70% of what you see on this web site began as musing in my prayer notebook - my journal. It was never intended for the public eye, so you will find some copy to be full of spelling or grammatical errors. Please forgive those. We will get to editing it as time permits.
Simplicity is best. I use a half sheet spiral notebook which you can buy at K-mart or WalMart for $1.99 to $3.50 depending on the thickness of the notebook. I like enough pages for a half-year or about 180 pages.
Immediately I mark the cover as "Private Prayer Journal" with a permanent marker, and I mark the date or period it will cover. Sometimes I mark just the start date then when it is full I add the closing date. - "July 1999 - December 1999." Then I keep it in a safe place, usually that is with my devotional Bible in my prayer closet. When I am finished with a notebook I file it in my filing cabinet for reviewing someday.
Here are some suggestions for getting started and what you might write in a journal:
Bible Reading Reflections
Prayers Written To God
Track Your Daily Feelings
Guides in PDF Format