I trade forex. It is much, much harder to learn than poker. You dont play against drunk fish and idiots, you play against the worlds largest financial institutions, hedge funds, central banks etc and they do not like people like us skimming their profits. These are people who have so much money to throw at an instrument they move the markets deliberately in their favor - bad poker players compain that online poker is rigged but in forex the game actually IS rigged.
Having said that it is possible to make profits, but you have to love pain. First of all forget about playing poker AND trading forex - if you decide to trade forex you have to put everything into it. For the first two or three years you will spend thousands of hours studying strategies, charts, indicators and patterns, laboriously refining, backtesting, refining, backtesting, forward and demo testing with absolutely no gain - any real money you put in will be lost. Imagine playing millions of hands of SSS poker with play money over several years - very few people have the patience and willpower to do this.
Forget about using strategies and signals designed by other people - this is where most traders eventually go broke, if you havent designed your own system you cannot consistently and accurately define reward/risk ratios. Successful strategies have very small edges and incorrect estimation of risk will wipe you out.
have fun ♦