excessively careful; painstaking; scrupulous; working very slowly and carefully and with great attention to detail
By all means, be meticulous in your research, but not so meticulous that you never actually complete the project.
metus (fear, dread, apprehension, anxiety) (Latin)
fastidious, meticulous, punctilious, scrupulous
Meticulous: Met (Meet)+ICU (hospital’s intensive care unit), so whenever you meet a person in ICU you need to be extremely careful about his health. It sounds like matriculation (admission to a college). To get matriculation we should be as a meticulous (careful) aspirant to clear the exam.