Next step is to transfer your mined coins to :
- Poloniex
- Kraken
- Hitbtc (easiest for beginners)
- ...
(Choose one to start with)
and start trading them with profit.
Second thing is to keep mining for another week, if you're still into it make your own rig,
1500 = way too much!
Start with 1 card (I use AMD rx480 and rx580, be sure to get 8gb cards, GTX 1070 also has a good ROI).
Next thing: start reading cryptonews, and don't get hyped by someone else.
Join a thrustworthy group (facebook, Reddit,...) of likeminded and listen, learn.
Last tip: when trading, please don't trade with emotion, sometimes it's good to HoDL! (Search Google for the HODL story)
Good luck!
RE: My Journey so far into the world of Cryptocurrency