Should you try mining $NOCK on your personal computer right now?

Here's how to think about it:

Finding a block is probabilistic.

An individual's chance per block is proportional to their share of the total network proof rate.

For example, running 60 threads at one proof per minute per thread on a single computer yields about one proof per second. If the total network rate is 2,000 proofs per second, the chance of finding any given block is 1 in 2,000. If block times continue to average around 6 minutes, and all other network conditions hold constant, you might expect to win a block in about 8.5 days using the open-source client off the shelf with a single computer.

Obviously, this is just a toy model to help you think about your prospects.

In reality, it's conditional on several network conditions, not least the number of miners.

As more people enter the competition, your chances naturally decrease!