You’ve set yourself up with a Zcash node and are mining using your CPU. Unfortunately, we’re long past the profitability of CPU mining. Your CPU gets you 6 Sol/s when the network hashrate is over 300 million Sol/s (300 MSol/s). Your chance of finding a block is literally 0%.
In order to find a block mining solo, you would need at least 300-500 thousand Sol/s (300-500 KSol/s). Even then, it would still be luck based and it would probably take months for you to find a block on your own.
That being said, you can join a pool. But you would still need a significant boost in hashrate to get anything reasonable.
For perspective and math:
Your CPU = 6 Sol/s
A decent GPU (let’s say a GTX 1070) = ~450 Sol/s
A top tier GPU (such as the GTX 1080 Ti) = ~720 Sol/s
To solo mine you would need 694 1080 Ti’s to hit 500 KSol/s (500,000/720=694)