Learn how to combat self-doubt and become more assertive so you can succeed at whatever you put your mind to. Deal with insecurity; Nurture self-belief; Challenge your inner critic; Learn to take action; Play to your strengths; Look the part.,

Dr Jessamy Hibberd is a highly respected clinical psychologist who worked for the NHS before setting up her own private practice. She is a member of the British Psychological Society (BPS) and the British Association for Behavioural and Cognitive Psychotherapies (BABCP).

Jo Usmar is a freelance journalist and editor. She has contributed to a variety of national titles, including Stylist and Fabulous, as well as writing a regular relationship column for Cosmopolitan. She has appeared on TV and radio commenting on lifestyle and relationship issues.