right now most if not all the alt coins have been going up.
most of it from speculation. Today they have been taking a dump, but who knows if that is the begining of a correction or if it is just a blip and they move again.
I have invested in eth, xrp, str and ntx and doubled my money. actually 2.5 times.
But I started 3 weeks ago. lol.
If you had put in yesterday, you would have lost about half.
I use coinbase for my wallet, and trade in poloniex.com.
I might start looking for another place to trade. Also note transfering "money" between coin base and poloniex must be done in eth or bitcoins as they don't do usd transfers.
Also, there is a difference between prices.
The reason I might look elsewhere is if you are a day trader, they have had a lot of glitches lately that prevented people from executing trades.
Mining is specialzed now. unless you build a very specific machine or buy it, you will not be able to mine anything.
you could join one of the mining groups that use distributed power and get fractions of an alt coin if you wanted to try that, but going alone means you wasted your time without very powerful machines.