Heyy Can we Swap in and out Database and/or ORM-ODM's ??

Heyy there are plenty of opportunities for python as well. What i feel is if you are starting up ,try and find a pace and a language that you feel comfortable with. Django , Node-Express etc are just implementation of python , js. Don't get confused or dis heartened by the job scene.When I was starting up with the Mean Stack, it was still new and was even discouraged to do so as JAVA-Spring, Asp .Net-C# were kind of the it things as per jobs market went. So just cheer up and try and learn as much as you can. And remember always to keep your basics intact forever. Cheers , Happy Learning.

It depends upon what kind of charts you want. If they are more or less stock charts you have host of libraries. If you are ready to pay for them, you have https://github.com/pablojim/highcharts-ng one of the most robust charting platform Or else for free you can prototype your way with c3js. It gives a pretty smooth integration with angular. We have done the same here at my organisation. If you are looking at more of visualisations , then d3js is the beast that you would go for. Although it doesn't play easy with angular, requires a bit more skill to integrate. I hope this helps you in some way.

Why so aggressive dude!!! U should be good to know which one to use where.

ohh please!!!!!!!

Especially for back end work where a lot of calculations take place , static typing will help you and as you said you are the only one working so far, it will give you far more control over what is happening.

A PubNub network is a great way to this. But might require deep lookup in to your use case for further help. https://www.pubnub.com/ Regards.