Did this for years. Be organized. Print up practice times and your rules. So the parents know what`s going on.I coached 10-12 year olds. Don`t put kids in positions before you do hitting drills and so . Remember every kid is different,so you will have to treat some kids different than others. Be firm ,but have fun. Start out first week or 2 by doing conditioning. Move on to your BASIC blocking drills.,hand-offs, form tackling. Make a playbook with 10 play`s max. Important have Blocking schemes in there. Ask if anybody that played football would like to help.I`m talking a parent .There always is someone. Hey,goodluck.It`s not as bad as it seems.I had alot of fun with the kids. Over half my team started in highschool.