I'm a 12th pass out &. Which course should I choose for a safe future: BA, B.Sc, B.Tech, ITI, Polytechnic, etc.?

Our financial & economic condition is below middle class, I'm the only boy in my family (elder) with other sisters. We have to deposit home loan every month from this year. Also, my father's job is private (not secure). We have to spend on my two sister's education too. My mother is a housewife.