Taken from https://www.bps.org.uk/public/what-is-psychology

Psychology is the scientific study of the mind and how it dictates and influences our behaviour, from communication and memory to thought and emotion.

It's about understanding what makes people tick and how this understanding can help us address many of the problems and issues in society today.

As a science psychology functions as both a thriving academic discipline and a vital professional practice, one dedicated to the study of human behaviour - and the thoughts, feelings, and motivations behind it - through observation, measurement, and testing, in order to form conclusions that are based on sound scientific methodology.

Taken from : https://www.bps.org.uk/public/become-psychologist/career-options-psychology

This page will provide you with information about your options when it comes to pursuing a professional career in psychology. 

Because all practising psychologists must have postgraduate qualifications there isn’t a fast track route to a career in psychology.

To become a Chartered Psychologist, you will first need to gain Graduate Basis for Chartered Membership (GBC) by completing an accredited degree or conversion course, and then go on to receive further training in the specific field of psychology that you want to work in.

It is important to consider that it will take at least six years to become a fully qualified Psychologist, which includes a full three year degree and three years of postgraduate training.