Definitely. A skilled worker almost always earns more than employees who learn on the job. For this reason you should definitely complete a vocational training course if you have not yet done so. The German vocational training system is good and internationally recognised. Skilled workers get good jobs. New recruits are needed particularly in skilled trades, such as those in the metalworking and electrical professions.
German policy supports vocational training
In Germany the aim is that those who come here should not only work as quickly as possible, but also be as highly qualified as possible. For this reason you can enter a vocational training course on easier conditions. All you need to do is to submit an application to the immigration authority ("Ausländerbehörde").