social security

If I do not live in any country permanently, but live as such a digital nomad, then how can I secure myself in terms of all the benefits a country usually gives one in terms of social security? Can you insure for the same?

I am a citizen from an EU country. I want to trade under my name, being trading my only source of income. No other Jobs involved. No intrested at first in set up a company or other structures. Np problema at all for stay over 183 days in an EU country. I have the purpose of trade...