Welcome to the exciting world of genealogy research! I hope you will love it as much as I do. There is so much to learn. You can take classes before you start or learn as you go. It is up to you.
I highly recommend checking out your local library, genealogical society, and/or historical society for classes and regular meetings. These local entities will teach you what resources are in your area. By attending regular meetings you will meet with others interested in researching their families like you and have people you can ask for advice on where to research next.
While commercials for online research sites make you think all you need is a subscription, Genealogists.com reports that as of 2017 only 9% of genealogical records are available online. You can discover much more about your family by utilizing the local resources available to you.