Ask the children of Israel why they never got to the promised land. They will explain how their trip was cancelled midway. They cried of food, leadership, water, temperature… Finally, trip cancelled or something like that. This means, if you continue complaining, either your future will be cancelled or waned.
Run away from complaining friend with all your might, with all your power and with all your strength lest you too learn to complain and have your beautiful life trip cancelled or waned.