Hooray, I'm an actual microbiologist, I get to chime in!
...I'm not really worried.
Ok, first of all, calling it "Coronavirus" is a bit vague. That is the name for the group of viruses this bug belongs to, rather like if you referred to the RAT, DS-1, and Shredmaster all as "Distortion" and nothing more. Officially, this is "2019-nCoV" or "COVID-2019". For reference, SARS back in 2003 and MERS back in 2012 were also Coronaviruses.
The name comes from the shape of the virus itself, has a sorta "decorated" look that the described as "crown-like", hence, corona.
Past the semantics, while it's worrying that it started in China (which is notorious for caring more about saving face than dealing with problems), It's currently sitting at an overall mortality rate of about ~3%, but most of those are from China where public health kinda sucks in general. Outside of China the mortality rate is currently hovering around 0.25% (for comparison, the normal yearly flu tends to sit around 0.1-0.2% mortality rates). The risk is of course greater to those with preexisting conditions, particularly high blood pressure and heart disease (it's rough on the lungs and associated vessels, so issues surrounding those can exasperate things)
So in general, with decent basic health care (and I mean things like "access to food and water" basics) it's no more concerning than a nasty flu year.
BUT, it is also new, and "exciting" so it will most definitely be blown majorly out of proportion by most media because it will sell.
It's also completely unrelated to the flu, so it could entirely possibly come to exist "beside" the flu as a new normal illness folks have to deal with.
So how to keep safe? Same rules apply as the flu. Wash your hands frequently. Don't touch your face/mouth/eyes without washing your hands while out and about. A face mask will not help you so don't bother (though they can help reduce spread of the disease if you end up sick). Eat a healthy diet and sleep well and all the usual stuff to keep your immune system running full steam.
But seriously, wash your hands. Number one way of respiratory viruses getting in is via your fingers, not your nose. In the same vein, alcohol based hand sanitizers can help in thise case (the virus has a fatty outer layer it needs to actually infect, and solvents destroy that very easily). If you want, carry some alcohol prep pads to wipe down things like shopping cart handles or restaurant tables (or again, just wash your hands before touching your face area).
Again, wash your hands. Soap and running water will reduce your chances of infection by orders of magnitude.