I started out trying to learn Latin alongside my DD11, but like you I just don't feel that is the best use of my time right now.
My DD is now learning from the First Form DVDs on her own. It seems to be working well for her. She is almost done with FF and will be starting Second Form in February. I let her take the pace down a bit. She will end up completing FF and SF in 3 years (grades 5-7) instead of two years. Fine with me, since it is a high school level program. When we begin planning grade 8, I'll let her decide whether or not to continue Latin while we begin a living language.
If you have not tried the DVDs and have a child who might learn well that way, I highly recommend buying or borrowing them.