I've never heard of Nextycoin - not before I read your post. I did some Googling and this is as much as I can tell you - I'm not able to predict if Nextycoin is going to turn out to be legit or a scam, but the last time I checked there were over 1400 legitimate cryptocurrencies out there, already in circulation. Choosing the right one/s is just a question of how much you can afford to invest. As much as I know, one of the best cryptocurrencies fit for every pocket is Dogecoin (DOGE). It is also very often recommended for newbies.