Hello. Your friend’s right, if you trade volume and use no rebate program you’re leaving money behind. Forex cashback works like this: through a rebate provider you get a portion back per lot traded, win or lose, because the broker shares part of the spread or commission. I use Globe Gain https://globegain.com/brokers/ for it, they’ve done this since 2011, partner with a range of brokers, and you can keep your trading style unchanged while the rebates accumulate. It’s legit, not magic, it just trims your effective cost, it doesn’t create profit on its own. Forex stays risky regardless. But for a legit cashback setup on volume you already trade, it’s worth looking into.