To be successful you must be committed. If not, you will likely struggle with the consistency needed to train and ultimately get burned out. The frequency of training and higher volume of running is important. Based on your schedule you may have to wake up early(ier) than you did before to get in the workout. However, don’t jeopardize sleep and get fewer hours of rest as a result. It will catch up with you and set you back as you will likely get sick or not perform as well. I choose to do my shorter runs during the week when it fits my schedule. If I’m rested I will complete my workout in the morning. If not, then I rest and move that workout to later in the day. It’s best to be flexible with this if your schedule allows. I also choose to do my long runs on the weekends when I can start earlier and be back at a decent time so I don’t miss out on too much family time. It’s a balancing act but it’s feasible and a lot less time to train for than you might imagine. I average about 8-9 hours a week of running which is about 65 total miles. Some weeks higher but just depends what I’m training for.