So far i have predicted them all correctly (and made good money from each). The election in 2015 in the UK where the Conservatives won, Brexit and Trump last year, all big outsider bets. But this French election, I'm certain that Macron will win it.
Please note that the odds of Le Pen winning are not zero...Betfair (London)'s market has an implied probability of around 9%
https://www.betfair.com/exchange/plus/politics/market/1.117179983
Pro: if you are good at it, then it can be extremely lucrative
Con: it's unlikely u will be.....
But then again, you only know if you try.
Why not take a 6 month sabbatical from your job rather than quitting?