I think that you should save your money, cutting your spendings by only buying what you need. I think that's a better way to manage your money.
In theory this sounds like a very good idea. But in reality it is very difficult to save a significant amount of money, unless you are having a very well paid job, in addition to a few other revenue sources. Also, saving money is quite risky in unstable countries such as Venezuela and Ukraine. You will never know when your national currency is going to get devalued.
Well, you can save money and then change it into USD or EUR or any other stable currency you like. This way it's not as risky anymore. Another option is buying silver. You can't spend anymore unless you really need it (crisis).