Where do I begin?

I am still a relative moron when it comes to the computer. I constantly need to ask my kids (even Michaela...) "should I check this?" "what does this mean?". But I must admit that it is a pretty cool tool when it comes to writing.
Last night at Bible Study, one of the questions posed to us was this:
"Based on Paul's testimony in Acts 20, have you ever had something you felt you SHOULD do, what was it? Now, have you ever had something that you have felt COMPELLED to do? Do you realize the difference?"
Honestly, there were several things that popped into my head about things I have done that I felt I "should" do. Direct Bible School, dive into a "Purity" seminar for some girls that I know, be part of a Praise and Worship team that went into Nursing homes, etc.
But I have only felt compelled to do two things in my life: have faith in allowing the Lord to bless us with a rather large family, and compile my journal of the past 5 years and write a book. The title will be "Living on Daily Bread". It is a testimony to God - for being the faithful, loving and merciful God that He is. He has literally carried me through months of waiting, uncertainty, hurt, and a myriad of other things - to lovingly show me who He is.
Instead of wasting my days on things that will not last (like writing 22 limericks! which was fun)
I feel compelled to sit down and start writing.