Human psychology has grown significantly in recent years, and this evolution has brought about a profound realisation: we need to treat mental illness with the same seriousness that we treat physical illnesses. People increasingly understand how important it is to take care of their mental health, and awareness of psychological wellbeing is growing. Thus, it is imperative that we recognise that mother nature is an integral part of our being, just as our physical and mental well-being, and begin taking steps to inspire us to protect her. Achieving a sustainable lifestyle requires striking a balance between human consumption and the natural world's capacity for renewal. We must make our existence meaningful and make it our main goal to live for the prosperity of our future generations, as stated in the quotation by Fyodor Dostoyesky that reads, "The mystery of human existence lies not in just staying alive, but in finding something to live for." The goal of this study is to determine how psychology and environment may work together to develop sustainable living practices by utilising their respective ideas. Among the main subjects being examined are the gaps in psychology's understanding of environmental and sustainability factors, the effects of human behaviour on the environment, actions that psychologists can take to inspire sustainable development, potential challenges for psychologists, etc.

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Keywords: Human Psychology, Physical Illnesses, Mental Health, Psychological Wellbeing.