Can a person become a web developer by teaching himself or herself?

I would like to learn web development, HTML, CSS, JavaScript, PHP, MySQL etc at home because I can not afford to learn in an institute.

Do you think I can learn at home by myself and become a professional web developer? Please suggest any tips and advices.

What is a VPN?

VPN is (Virtual Private Network) were first used by companies to enable their employees to securely access internal systems such as email remotely (e.g. from home or while on business trips). Today they are increasingly being used for personal use by individuals to protect their privacy while online in public places (e.g. when using the wi-fi connection in a cafe) or in a country where the internet is censored / blocked (e.g. China, Saudi Arabia��).