Gambling isn't a risk free way to make money. If it was possible, we wouldn't call it "gambling", we would call it "job" or "business" instead.
Actually there is a way to make money taking risks, be very good in finding positive results. Not every game is purely random, alot are but its possible to enter into a site with free bets and come out a good gain if you find very long odds on reasonable risk bets.
Its easy to state these things but pretty much a life times work to find the high risk scenarios that would pay off. Obviously random luck is possible, sometimes people stumble across games which benefit them disproportionally or they have a natural skill for. Some people are gods at poker somehow or learn very well and very quickly; you only really have to be better then the other people at the table and theres a million tables out there to take part in. Its not wrong to try, only a bad loss if you cannot recognise the loss as one likely to be repeated.
I said this elsewhere but there are faucet sites or many gamble sites that will give something like a faucet for a registered member. At least one faucet site lets you bet on real world events, sporting, politics and all kinds of things. A recent bet was the results on best 2019 MTV music video, the surprise result was the Jonas brothers with odds of 26 to 1 which is amazing because surely they are a top name. I think what happens sometimes is people are purposely biased or just dont have a clue and guess by their own point of view. The money returned on good judgement then is very good and I would suggest finding similar situations is the path to make some profits regularly.
Its not always exciting and requires patience but its very possible to gain from participation, people are often making mistakes in sports betting I find as its very hype or ego driven type gambling.