How can I see if my MN is ok?
MN is online for more than 14 hours and no reward yet ... should I wait more or start panicking?
Start panicking. That's always helpful

You should be able to see in your controller wallet in the masternodes tab.
If everything is set up correctly, it should say it is enabled and when it was last seen.
I'm assuming you have the classic setup with a remote linux VM and a local controller qt wallet to start it
As for the amount of time, you may only know the average. For crowdcoin, these days its almost 24h, so no worries...yet
You can see for yourself at
https://masternodes.online/currencies/CRC/