If you do not have a steady source of income maybe investing be a good option. But if you have a steady source of income maybe saving is a pretty good option.
Even you don't have a steady income, saving will always be a good choice as there are people that doesn't have job but only relying with their saving and it's a very good help to them. Though I'm not saying that we shouldn't invest but I say that both things are good. And these two are going to give you a good way of living.