toiling line icons collection. effort, work, labor, struggle, sweat, hardship, drudgery and linear

vector icon line sign effort work labor struggle sweat hardship drudgery exhaustion fatigue perseverance grit persistence challenge endurance resilience dedication commitment tedium monotony repetition dullness grind slog trenchwork strain stress pressure tension anxiety frustration anguish uncertainty doubt fear insecurity inadequacy imperfection error mistake failure resentment bitterness disappointment regret detestment