I think you are already on the right path by taking continuing education classes. However, be aware that once you get your license and start working, you tend to get immersed in the work and lose interest in upholding standards. Some of the customers may pressure you to engage in unprofessional behavior. The more you hang around bars, the more trouble you will get into, even if you are an employee there.
So after a year or so, you may want to continue your bartending education. Take online or in-person classes to relearn what you have learned originally. You may learn a few new techniques, such as flipping bottles in the air or doing fancy moves to mix drinks.
If you ever wanted to get a new job somewhere else, make sure you can live up to the ever rising standards set by the younger, fresher competitors. In some bars, they tend to hire young, attractive people. However, with all the new skills you have learned, you shall be confident that you will impress your employer.