on the side of Service

I have just re-joined Regis Brodie's evening Master Class at Skidmore... this time not as his assistant but as a fully paid member of the ?graduate/adult? student body... and yet it seems as if I've fallen right into that pattern of being asked and saying "yes"...
Yesterday, I went into the studio to use the extruder and before I knew what was happening I was re-working the hoses on the compressor driven extruder and agreeing to go out and buy C-clamps... I never managed to do the work that I had intended to do there and, even though it is ego-stroking to be back in the studio where people are very welcoming, etc., I did have the intention that I would be focusing on my own artistic development...
My daughter points out, (in a thrice, I might add), that she has learned this 'service' behavior from me (therefore when she says 'yes' without meaning to it is my fault). I certainly admitted it with the caveat that I continue to struggle with this response to need even though I am an 'adult'.
I don't know if there is hope for me, but I sure hope that my daughter, having figured this out so soon, will sort it out before too much longer.
If not, always better to err on the side of 'Service'.