pushing uphill

achieve achievement active activity arduous attitude boulder demanding determination determined difficult dirty doing done effort endeavor endeavour energetic energy exercise exertion exhausted exhausting fatigue fatiguing goal goals hard herculean impossible job labor labour man mission objective objectives perform performance person personal physical power powerful problem problems psychology sisyphean sisyphus strain straining strength strenuous stress strong struggle success sweat sweating task tasks taxing tired tough up upward wearing will willpower work worker workflow working workload workout