I am still one of the great amateurs of multiplayer games, but more practical this since childhood, when I was little I played with friends and had enormously happy moments. Back then we didn't have any money either, so we preferred the free CSGO game option. When I grew up but I did not forget about it, but I also learned that it is possible that some of your weapons, or what you have accumulated in the game to sell them and earn money, so I managed to buy the levels in the game. I do this on https://skinsmonkey.com/ . I propose you to try this mechanism