There’s nothing wrong with having fun while also sticking to the rules. As long as everybody is safe, no laws are broken, and things are well-organised, you are happy to relax into a good time.
You’re upbeat and fun to be around, but you never lose control, and never lose sight of your values. You’ve likely been designated driver more times than the rest of your friend group, and in fact you tend to find yourself doing lots of favours for lots of people.
As a persistent and reliable person, your work is always in on time, your choices are always for the greater good, and people often ask you to look after things (including their children). You don’t mind, though: it actually gives you a sense of internal gratification to do things for others.
You prefer the sort of tasks that require a solid method and a strong work-ethic, rather than abstract thinking—much like an Ikea flat-pack.