I earn money from signature campaign and sometimes buy and sell online

I don't know much about ripple, maybe coming years it will gain ground. So be careful of what u will invest on.

Stopping your present job will not be a good idea, because, if you're still working, you can have much funds to invest on Bitcoin.

Investment is better than saving money in bank, because investment will yield more returned than saving money.

Its a new type of investment, people buy and invest in bitcoin because its like digital gold, and it is use as alternative store of wealth..

Yea it can. This is because cryptocurrencies are gradually gaining popularity and prominence. Also the world itself is gradually evolutioning towards this digital currencies. Then why not?