So, sign up and do the course. 30 days guaranteed, maybe more!
If we can get one new pilot a month it will go on forever.
Ask Bobby, IIRC he's taken the course. Everyone I've recommended it to, has passed, and said it was a great course.
IIRC it's a little over 30 hours of ground school. That would cost you $1,500 at $50 an hours.
You want to be a pilot. This is the best way, on your own schedule, to lay a foundation before you ever talk to your CFI and first ride in the pattern. No one can take this knowledge away from you. Only a little rusty without use.
You will know the pattern, radio communications, runway markings, etc and it equates to less instruction required in both groud school, navigation, and flying.
Make your dream come true. Do the work, of course, but mainly just do it now, today. Life has a way of never being the right time to live our dreams.