Aish Hatorah is a great resource. Even knowing my whole life I was Jewish, their programs helped define what that meant to me and how to put in practice living a Jewish life. They have programs like Discovery, which I believe is given on college campuses and other locations throughout the year, as well as many local and online programs. If you ever decide to come to Israel, they have a girl’s school and also Jewel, where you can learn in a full-day environment for however long you are interested – scholarships are available. There is also Neve, which I believe now has programs including college course work so you could do both at the same time, but don’t quote me on that.
There are many resources out there available and I truly hope that you avail yourself of what is out that and find yourself living a truly Jewish life and give your ancestors Jewish pride (nachas).
Just as a side comment – Chabad/Lubavitch is a chassidish organization and often appeals to the emotions as a motivator. Aish HaTorah has programs that appeal more to the intellect.
GL (hatzlacha) in your search.