It seems overly simple, but a lot of people dismiss the act of being grateful, and this has adverse effects.
I notice in a couple of people within my social circle who are always complaining and being so cynical about life and what's happening, it’s soo easy to criticise and complain, and it’s rather infectious to the people who continuously hear it (also brings the mood down). If the complainers simply practised gratitude now and again, they would realise they don’t have too much to complain about. Whether that’s their loving and supportive partner, the new apartment they are living in that keeps them warm and safe or the job they have that gives them soo much freedom and trust which not many employers empower. When you think about it, we all have something to be grateful for, and just taking a couple of minutes a day to recognise this will have a powerful effect.
This positive thinking will set you up for success!