I'm a ghost believer all the way, and even I have to go with nerves on this one.
Firstly, new age stuff isn't occult or paranormal in nature. Most of it is funny as hell because it mashes several religious and spiritual beliefs all together into one big stoned family, but it's hardly anything demonic or even forbidden.
Second, flickering lights and failing lightbulbs are usually due to a phenomenon known as electricity, which isn't really a phenomenon.
Even perfectly built lightbulbs flicker and temporarily fail near the end of their life spans, and most lightbulbs are not perfectly built. They're cranked out in factories, hundreds at a time, and a few glitchy filaments always get through into packaging. And if it's a cheap bulb, it'll do that its whole life. And then there's the light fixture itself, which also has a life span. Any light socket over 10 years old is almost guaranteed to do that exact thing due to normal wear.
But let's say your bulb is really expensive and new, and so is the fixture. You'll still see that happen, because power hiccups are really common. We like to think that power flows at 120 volts constantly, but no such dice. It jumps between zero and 240 volts regularly, up and down in a microsecond. Power spikes and micro-failures can be caused by anything (a neighbour firing up a hair dryer or power saw will do it), and some of them can literally destroy your TV. If you look at your service contract from the power company, you'll see a disclaimer saying how they're not responsible if a power spike causes damage to your property. That's how commonly it happens.
The fact that this didn't happen before is pure coincidence, my friend. It actually did happen before, and you just didn't pay attention to it. But you've been reading about stuff that puts you into that creepy state of mind (very understandable, happens to all of us), and now every little thing makes you say "what was that" when it happens.
You're just fine. Besides, ghosts aren't scary. You'll know what I mean if and when you ever encounter one. They're scary on TV, but in reality they're as normal as the setting sun.