tenacity

achievement attitude career challenge challenges challenging competition competitive crisis demanding determination determined difficult difficulties difficulty distress doubt doubts effort employee employees energy esteem fear fears feeling feelings future give giving goal goals grow growth hard improve improving job leader leadership learn learning life management mental motivate motivation opportunities opportunity optimism optimist optimistic overcome overcoming people perseverance persistence persistent person personal personality pessimism positive problem problems psychology quit quitting recession self setback solution solutions stress succeed success successful tenacious tenacity test trial willpower work worker workload worries worry worrying