There are a number of useful websites which provide relevant practical information, suggestions and advice.
Living Life To The Full course is a life skills course that aims to provide access to high quality, practical and user-friendly training in life skills. The course teaches you how to tackle and respond to issues/demands which we all meet in our everyday lives.
Mood Gym – learn cognitive behaviour therapy skills for preventing and coping with depression.
Moodzone (NHS Choices) - information about stress, anxiety and depression. With lots of useful information and self-help tools.
NHS Choices – up-to-date information from the NHS on conditions treatments, local services and healthy living.
Mood Juice – some information is only specific to Scotland, but there is useful self-help literature on a variety of issues including anger, anxiety, assertiveness, bereavement, depression, insomnia, obsessions and compulsions, panic, post-traumatic stress, shyness and social phobias.
Mobile apps can be effective tools that make therapy more accessible, efficient, and portable for those with anxiety disorders, depression, OCD, PTSD, and other related disorders.
There are a number of apps out there which are worth viewing to see which meet your requirements:
NHS Choices Health Apps Library lists relevant apps for you to browse.