Resistance to Structure

There is something that I have pondered for a little while, and I cannot quite figure it out. Normally I am very self-aware, but with this, I can't seem to conjure up an answer:

Most of my life, I feel like I have struggled with being compliant to structure (i.e. routines, exercise, emotional regulation, etc), but it has been particularly noticeable lately. No one can answer this for me without really knowing me, so I will not ask you to deduce the reasoning behind *my* resistance.

What I am curious to know is if there is anyone else out there that has been struggling with resistance to structure, and if so, what do you think has been the underlying reason for your personal situation? What have you done to try to combat your resistance to structure? What has worked for you, and what hasn't worked for you?