Assess how a personal lifestyle plan could assist you to experience quality of life during periods of change, by discussing the following components of such a plan:
2.3.1 diet and nutrition
2.3.2 relationship with friends and family.
2.3.3 recreation and relaxation.

A personal lifestyle plan will indeed have and involve changes in al of the mentioned number points 

2.3.1. it is desirable that a personal lifestyle plan will include healthy nutrition and a good diet where a lot of emphasis would be given on vegetables and healthy fats, together with good meath.

2.3.2. it would be desirable to maintain a healthy and stable relationship with our health and family as this has numerous mental and emotional health benefits

2.3.3. it's important and beneficial to regularly participate in sports and different activities. 

An informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.