Your dog will be quite happy being beta as long as you show the dog that beta is a good way to live. In dog terms, you are the "alpha," giving your dog everything it needs to survive. The essentials of food, shelter and, most importantly, companionship (the pack) are provided by you. For those things, your dog will work and be happy as long as you demonstrate that you will not submit to challenges.
To be sure, the beta dog will present regular challenges in hopes of gaining the alpha position. If the beta dog wins the challenge, there is a new leader of the pack, so do not give in. Some of the challenges are subtle. Those are the ones you must pay close attention to while training. If you win the small battles, the big fights will be much easier to handle. Dogs see the world in black and white. To your dog, either you are in control or it is. There is no middle ground.
Dr. Ivan Petrovic Pavlov taught us a lot about canine behavior. Two of his most important points, "conditioned responses" and "substitution," will be the cornerstones of your training program.
Conditioned responses to commands are mandatory for a properly trained dog. When you explain something one time to a person, he or she will understand it and quite often give a positive response when questioned on that topic. Canines are different in that they trust their instincts implicitly. Instincts have protected canines for thousands of years from wild animals and other threats, and those threats still live in their minds today. In your training program, you must totally condition the responses to the obedience commands to such a degree that your dog trusts you more than its own instincts. That is a tall order, and you must take it seriously or you will not have success.
Simple repetition is the only way to properly condition a dog. Simple repetition to the tune of around 1,000 repetitions per command will do this nicely. That might seem like an undoable task but if you will train consistently, it will take only a short time.
Dr. Pavlov also taught us about substitution. This is where we use a stimulus to cause a response and then add another stimulus simultaneously until the second stimulus evokes the same response as the first. You might remember Dr. Pavlov's work with ringing the dinner bell as he was feeding his dog. It did not take long before simply ringing the dinner bell caused the dog to salivate. In dog training, substitution means beginning with a leash, progressing to words and then finishing with electronic stimulation.
So, how often should you train your dog? That depends on how good you want your dog to perform. If you desire a bulletproof, obedient dog, you will need to do two 10-minute sessions of focused work with your dog each day. Now, that does not sound so bad, does it? During those sessions, it will be all work and no play time. You will praise your dog and reward its positive responses but always maintain an alpha role. Some of the sessions may be shorter than 10 minutes and others may be longer because each session should be goal-oriented — and those goals must be realistic.
When you accomplish the desired goal for that day, stop and celebrate. Avoid the temptation of trying to meet tomorrow's goals along with today's goals just because you have some extra time. That can lead to failure. You always want to finish a session on a positive note so your dog will look forward to coming "back to work" tomorrow.