In college I took a personality test which told me I was an ISFJ personality. ISFJ stands for Introverted, Sensing, Feeling, Judgement.
Here’s some characteristics of ISFJ’s which I feel I exhibit:

• Characterized above all by their desire to serve others, their “need to be needed,” and to minister to individual needs
• Have a few, close friends. They are extremely loyal to these, and are ready to provide emotional and practical support at a moment’s notice. However, they hate confrontation; if you get into a fight, don’t expect them to jump in after you. You can count on them, however, to run and get the nearest authority figure.) The older the friendship is, the more an ISFJ will value it.
• Are super-dependable and seldom are happy working in situations where rules are constantly changing.
• Much satisfaction comes to them when they are taking care of the needs of another and they render the service gently and helpfully.
• Are methodical and accurate workers, often with very good memories and unexpected analytic abilities; they are also good with people in small-group or one-on-one situations because of their patient and genuinely sympathetic approach to dealing with others.