In order to become a professional locksmith a proper training are required and choosing the right school is highly important.
Locksmith schools have a lot to offer as they teach basic theories and use practical learning methods.
A high school diploma or equivalent is absolutely required and also deep knowledge in mathematics, mechanical drawing and physics.
Here is a pathway for you to follow on your journey to become a professional locksmith:
Training
Many trade schools offer courses specific for locksmith and have programs that can last from a few months to two years and cover most topics like lock mechanisms, key duplication, residential and commercial locksmithing, automotive locksmithing and security systems.
Apprenticeship
An apprenticeship under an experienced locksmith can provide great experience and can take place in addition to formal education. Most apprenticeships often last about two years.

Certification
While not always mandatory certification can enhance credibility and create career opportunities. Employers prefer candidates with formal training and a certification that proves they posses the right skills.
Licensing
Some states and California with in them require locksmiths to obtain a license to practice it professionally.
This involves passing a background check and may require passing an exam or providing a certification of proof of training.
Start Working
Locksmiths can work in a several different environments including locksmith companies, security firms or as independent contractors.
Some may specialize in certain areas such as automotive and others will prefer to work as emergency lockout service providers.