If you're an ISTP, three practices fit how you're built: praying while you work, reading the narrative parts of scripture, and one deliberate conversation a month. The first two will feel natural. The third exists because the first two can be done entirely alone, and you will.
An Ambition to Work With Your Hands
Paul's instruction to the Thessalonians is odd enough to be worth quoting exactly.
"and to make it your ambition to lead a quiet life: You should mind your own business and work with your hands, so that your daily life may win the respect of outsiders and so that you will not be dependent on anybody" (1 Thessalonians 4:11-12).
Ambition is the surprising word. Not settle for, not be content with. Make it your ambition.
And notice the outcome he attaches to it. The daily life is what wins respect from people outside the church. Not a testimony, not an argument. A competent, unremarkable, self-supporting life in which you do your work properly.
That is a description of a spiritual life that a lot of church culture doesn't have a category for, and it's yours.
Practice One: Pray While You Work
The first practice removes the seated part.
Pray while your hands are busy. In the shop, in the car, on the roof, under the sink. Talk to God about what's in front of you, about the person the job is for, about whatever is actually going on with you.
If sitting still with a coffee and a devotional has never worked, that's a format mismatch rather than a failure of faith. Your attention is best when your hands are occupied, and there's nothing in scripture that requires the alternative.
The only rule that makes this a practice rather than a stray thought is that it has to be addressed. Say it to him, not about him.
Practice Two: Read the Parts Where Things Happen
Start with narrative. Judges, Samuel, Kings, the Gospels, Acts. Books where people do things in specific places and the writer tells you what happened.
Read a scene rather than a chapter. Then ask the two questions that suit how you think: what did this person actually do, and what would I have done. That's a real engagement with the text and it's more useful than a paragraph of reflection you didn't mean.
The letters are worth getting to, and they're not the place to start for this type. Nothing is lost by reading Mark before Romans.
Practice Three: One Conversation a Month
The third practice is deliberate because it won't happen by itself.
Once a month, tell one person how you're actually doing. Not the situation report. The part where something is difficult and you haven't solved it.
Here's why it belongs on this list. Serving with your hands is genuine ministry and it's also the most effective way to be at church constantly without anybody learning a thing about you. You can run the sound desk for six years and be known by nobody, and the fault is not the church's.
One conversation a month is a low bar, and it's enough to keep that from happening.
When Something Breaks
A note on crisis, since this type is at its best in one.
When something goes badly wrong for somebody near you, you will see the practical next step before anybody else and you'll take it without being asked. Do that. It's a real gift and it arrives at exactly the moment people need it.
Then don't disappear once the practical part is handled. The instinct will be to leave when the fixing is done, because the rest of it isn't your territory. Staying for the part after the fix, when there's nothing to do, is the harder ministry and it's the one people remember.
Teach Somebody What You Can Do
One more practice, and it turns a solitary strength into something the church keeps.
Whatever you're competent at, take one person through it. Show somebody how the desk works, how to wire it, how to fix it, how you knew what was wrong. You'll want to do it yourself because it's faster and it'll be done properly, and that's exactly why nobody else learns it.
Teaching a skill is also the most natural conversation this type will ever have. Two people, a task, and hours side by side, which is where you're most likely to say something real without having been asked a direct question about your feelings.
Where to Go Next
The companion piece is connecting with Jesus as an ISTP, about Gideon, who asked God for proof twice and got it both times.
For the description, what it means to be an ISTP covers the four letters and why silence gets misread here. Everything for this type is collected here.
Pray with your hands busy, read the parts where things happen, and have one real conversation a month.