Cathleen,
I am happy to hear that you are interested in learning ASL. Wyzant offers this subject area for one-on-one tutoring so one option would be for you to start taking online lessons with a tutor. I certainly would be happy to tutor you if you wish.
Your desire also to take a class is also an effective way to learn ASL. Having the interaction of other students and the direct interaction with your teacher in the classroom is very helpful. Some students I have tutored on Wyzant are also taking classes and use tutoring for assistance and practice with their classwork and homework. That can be an effective strategy. So when you move and are able to take classes at your local college this will be a good way to learn ASL.
You should expect that learning ASL will be similar to learning any other language. It will take time to become proficient but depending on your purpose you can learning to a conversational level in 2 - 4 semesters of instruction.
You seem to be very motivated and wanting to get started right away so I would suggest that you consider Wyzant online tutoring. I would be happy to discuss this with you further and even schedule a free half hour session to get acquainted and determine if you would like to continue tutoring in ASL with me.
Regards and best wishes,
Bill Newell