The local community colleges would at least be worth checking out. There should be a database fundamentals class. You could at least see which database they are teaching and which textbook they are using. I wouldn't be surprised if the first database class is teaching MS Access. You may be able to attend the class online.
Installing Access, getting a good book on the subject and looking at the Access help documentation and online resources should get you started. I personally wouldn't bother with Access applications or VBA (visual basic for applications). Whenever I have used access, which isn't often, I use it only for a database. There are more powerful tools than VBA.
Once you complete the fundamentals class there should be a couple of more advanced classes that will teach an industry standard database and be much more involved.