OK, that is what I was guessing your answer would be. You need to get on a good progressive training program, whereby EACH new thing the dog learns is based on what it has ALREADY been taught.
Go to
www.rushcreekpress.com Then click on "Flow Chart". This will give you an idea about how good 'progression training' should go.
Then order the book(s), and follow them to the letter - page by page, chapter by chapter.