I'm trying to get my own cc, cvv. I am studying database intrusion of websites, but I came across a lot of information. What do I really need? PHP language? Metasploit? kali I tried to invade with bruteforce through port 3306 but I did not succeed. I have read various forms of penetration and have not been successful. Could someone tell me if I'm on the right path?

Or youl could just spam for CC's...

You already told me about it, how do I do it?

It is recommended that you scan SQL injection vulnerabilities and framework vulnerabilities of PHP language, and you will get better results from this aspect.