Hi guys I'm new to zcoin
1) How I can earn more money from it ?
And there is 3 basic question ?
2) What are masters node and their profit ?
3) Should I wait for price correction ?
4) what is the profit of minig with a GPU gtx 1070 ?
You asked very good questions man

1. No one can answer this question but you. You can mine and keep them, buy and trade...
2. Masternodes are running the same wallet software on the same blockchain to provide service to the network. Masternodes get portion of reward for each block. Masternode's profit depends on coins and number of masternodes on the network.
3. You have answered your question. Like BTC's price from 0.1 to 11000 USD, if we would know, we will be a millionaire.
4. With current diff, 1070 can make 3 - 3.5 USD/ day after electric cost.