Unfortunately value investing hasn't worked for at least a decade (in the sense of outperforming the market, either in an absolute sense or a risk-adjusted sense), and it's an open question as to whether it will ever work again.
Value investing was an amazing trade back in the mid-1900s, when Ben Graham was doing his thing, the Chuck and Wozza Show was making a bunch of Omaha housewives into squillionaires, and Seth Klarman was writing extremely collectible books. But the reason it worked so well was that getting basic information about companies was hard - companies could bounce along with lots of net cash, low P/E or P/B ratios, etc etc etc. for years, and nobody would find out about them, so it was easy to find companies that were still "undiscovered gems".
Nowadays, every muppet with a brokerage account can fire up the Finviz stock screener, set up a "value stocks" screen, and play at being a value-stock investor. You can even buy an ETF that does it all for you. The problem is, the nature of the value factor is that as it becomes easier to invest in, it stops working: stocks that would hit a value screen get bought before they show up on that value screen, so the only stocks that show up on value-stock screens are value traps.
This doesn't apply everywhere, though. You could persuade me that there's a few long-term value-stock gems to be found in the lower reaches of the SGX, for example (as long as you're careful to filter out the trashcos that are trapped in a chokehold of related-party holdings), and value investing in Japan is definitely becoming a thing.
But the stocks that usually show up on value screens—financials and mining stocks especially—are usually there for a reason. And until something happens to make those two sectors move: either a steepening of the yield curve (not gonna happen) or a huge rally in commodity prices (probably not gonna happen), you're not going to get much joy out of being a value-stock investor.