I can relate to everything you say epalf.

Unless I am focussed upon attaining a specific objective in particular whereas I might stick at it all day through several sessions, or over the course of several days if necessary, I do pretty much the same thing, but generally over the course of multiple sessions per day. Variety maintains the interest and short term success reinvigorates motivation.

I've got a couple of loopers too. I too find consistently timing the loop begin-end is quite an acquired art. Strangely I find the more capable multi-button NUX Loop Core (Boss clone) the easier to use. The sequential click sequence of the Kokko SOS mini (Ditto clone) is confusing. The light and click sequences are uninstinctive. It could be I just need to spend more time with it until it becomes second nature, which I don't because I have the other.