The question I why did you edit photos? What was goal? Why were you doing it in the first place?

I guess the thing you have discovered shooting analog is that each click is a finite resource so you spend more time composing and being aware of the scene before you take the photo.

Saving £20 is nice.

Having your 36 snapshots developed at a decent lab will cost you more.

In you are paying them additionally for edits as well you are on longer saving money. You just pay someone else.

Or are you giving it to a company that runs it through an automated usually digital these days sometimes analog machine that develops them automatically? Those machines usually do edits as well. But highly automated ones. (I am not sure they make them anymore)

Having my medium format film developed is far from cheap.

Lightroom is far from the only editor out there and it is not a great editor to start with. Lightroom is a Frankenstein combination of of a DAM and an editor.

You probably will want some form of DAM to organize your photos regardless.