Finishing a story feels wierd?

I finished Surgeons Lodger last night. 26 parts. This is the first story of any length I have written.

I have several other stories that are multipart, but nothing like that long. Bright boy was 22 chapter's long, but I was feeding off Bev's 90 Chapter story.

Do people prefer reading long running stories or shorter ones?

I'm not sure I want to write another that long, yet there are some huge ongoing stories on here. How do you keep them going?