Attitude might seem liks an inconsequential thin. It is not. A little self-evaluation before embarking on this journey can prove to be very useful. It's ok to have doubts. We did, but we over road those negative thoughts, and focused on helping our kids to be there best they could be, and to have fun getting there.
Examine your hesitancy. If it has merit, don't do it. If it's a chimera created by your imagined fears, then it's up to you whether or not yo confront them. Generally they disappear like fog as you persevere through them.
Understand that it is ok to explore other methods when raising children, including you educational approach, your curriculum, your health care primary providers, your dress, your sleeping habits, or you lack of certain cultural norms like a TV.
It is ok to live an alternative lifestyle, which is in essence what you will be embarking on. If it is a healthy, loving, accepting and nurturing parenting, this will go a very long way to bolstering your endeavors within home education.
Cultivate the attitude that you are ok, and doing well and getting better and growing in all your abilities, and that you can teach your children, as good as, if not better than strangers can. I'm not saying strangers are bad, only that you are the person who cares the most about your children.
It is essential for you to realize that you have been teaching them well before they were born, and into their first crucial years, and that you are their primary role models for learning anything. You are teaching them your values. Just keep on, keeping on.