Starting a new coin is really easy if you're just going to clone an existing one... I made a couple testcoins in the past to learn about the protocol.

https://themerkle.com/altcoins-dying-make-one-hour/

This being said, it's not a good idear to keep dumping new alt's onto the world... IF you want to generate a new coin, at least make some usefull adaptations, so your coin is better than the original one. Also, creating a coin means a lot of work:

- updating your code
- compiling
- creating a community
- getting your coin on exchanges
- making sure there are pool available
- ...

All in all, you need a lot of coding knowledge and intimate knowledge of the protocol, plus a big team in order to do something like this.