I think kids do need freedom, but they also need relationships and guidance. My own girls are 12 and 13 now and doing very well at school. I read a few articles and books about parenting and I do think that helped, not because all of them were great, some were some weren't, but they all helped me think about the problem from different angles.

The best advice I can give is to support their interests and get involved in activities they enjoy, sure. But also allow them to get interested and involved in the things you enjoy. Kids go through a phase from 2 to 6 or so where they love to help and love to find out about everything adults do. They will help do housework, help do shopping, watch you do whatever you are doing. Talk to them and answer their questions. Pitch your answers to their level without being condescending (google maps on your phone works because a satellite floating no up in space can see where you are), spend the extra time it takes. Letting them help will make the job take twice as long, and that's fine. Invest that time and be patient, it's well worth it and will pay dividends for the rest of your life.