If you think you are creative and draw pretty well and that is why you want to take up art classes for beginners and pursue art as a career. Then you need to think twice. First thing you have to know is are you really sure you are creative enough and that your imagination is very powerful and your drawing skills are equally good. It is not that you have to have in born talent for it. One can become a good artist by practicing too, but again it is all in the mind. To think out of the box and to be able to appreciate the beauty in anything and be a keen observer.
Even if you think you will pursue art as a career, know the goals you have to achieve and what exactly you want to become after learning art, because there are infinite number of fields that you can get into once you are an artist. One should also know the kind of salaries that they get for the art field that they are planning to pursue. You also need to have a good marketing strategy if you want to become an artist, because you will be needing to sell your work. Always carefully check out all the various options that colleges offer for prospective artists and select a good one which will be good for your future career wise and salary wise.
Once you have thought about all these things in detail, the it is always better to take up beginner art classes, which are provided by private studios, where you can lay a basic foundation and be all prepared with your portfolios to get into some good art college.