Absolutely! However 'can' and 'want to' are two different statements. There are 4 different options. All yourself, most yourself, some yourself, and none. Depending on how organised, confident and composed you and your family are, really determines what you might be able to do.
The other question is 'why do you want to do it yourself?' Is it cost, wanting to be involved in this special way, you have done most of it before, and/or you have a great family/whanau who will do it all anyway.