virtual timeline

I like to give myself virtual timetable from time to time. What I mean is, I like to set arbitrary time to do certain things; to call a friend, to ask someone out, or to just message someone. I tend to think a lot before I contact other people; are they busy? would they get annoyed by my phone call? Is this really a good time to call/message someone? It seems as if I am using my politeness as an excuse to create a distance with other people. Should I not care about what other people might think, and act out what I really want from time to time?