Sometimes the sentence you can fit into a caption is true, but it leaves out the part you wanted to say.
“Moving away changes you” could introduce a thought. It doesn't explain what changed, what you miss, or why you only noticed it while visiting home.
If those parts matter, keep writing.
Keep the detail that gives the thought meaning
A general sentence can be easy to read and hard to respond to. The explanation gives another person something to recognize or ask about.
Imagine writing that you enjoy independence. You might then explain that independence has started to make asking for help feel embarrassing. The tension is what makes the thought specific. Removing it to preserve a neat sentence removes much of what someone could talk to you about.
This doesn't mean longer writing is automatically better. A joke may work in one line. An observation may be complete in two sentences. An explanation deserves the space it needs.
Edit repetition before you edit the explanation
When you shorten a piece, ask what each paragraph adds. One may give context. Another may explain a change in your view. Another may repeat the same conclusion with different adjectives.
Remove the repetition first. Keep details that help a reader follow how you arrived at the thought. If a sentence exists mainly to sound impressive, try saying it the way you would explain it to a friend.
Read the result aloud. Notice where you feel compelled to insert context that you deleted. That context may belong in the piece.
You can finish without settling everything
Personal writing doesn't always need a lesson. You may have described a contradiction you still live with or a question you haven't resolved.
State where you are. “I haven't worked out whether I want to move back or just want my old routine” can be a complete ending when that is the honest situation.
Readers can respond to uncertainty. You don't need to turn every experience into advice before making it worth sharing.
A Thoughts Portfolio on Sinapsis gives selected pieces a public home. You can write a short thought when it feels complete or give an explanation more room. Within Sinapsis, someone who wants to discuss a thought can respond privately.
Take a sentence you have shortened repeatedly. Write the explanation you keep leaving out. Then edit it for clarity. You may still end with a short piece, but it will contain the part that made you want to write it in the first place.