Hey members of bitcointalk, I am a bit new with BTC and I was so interested to use it but i see that the price is fluctuating between up and down too much which made me lose some money. Is this ok with BTC or I have to use another stable Altcoin? And which Altcoin I may use?
Sorry for being noob

You should look into Ripple, that used the currency called XRP. I like to emphasize that Ripple is much more than a cryptocurrency, unlike its native currency XRP. You can look that up.
Also, BitsharesX and NXT might be some choices. NXT and Ripple seem very ambitious in my eyes, and are way ahead on Bitcoin at this point. Just read up on those, and make your own decision.