How to live comfortable in an over populated environment?
I think you can just change the country if that's all you're confused about. If you mean the future that we are facing, it is likely that measures will be taken according to the mass extermination of the population.
Living a comfortable life in a crowded environment will lead to a lot of hardship from almost everything to food. But you just said that it will be taken in the future. Make this population problem a little earlier but now it can be avoided All people are aware of now.