@shaniboek Well... Your attention is towards "professionals that don't have time" so keep using time as coin, forget about giving money back or a free month, because that's money, and you are not trying to fix their money problem, you are fixing their time problem.
Try no to get confused about your own vision. - Money solves money, time solves time. - Unconsciously we know our problem and we also know the solution, we just need someone to "remember" us about how to fix it, and that's what great sales people do.
The concept is simple: you are against something and in favor of other thing. In your case it could be that you are in favor of prioritizing your health and quality of life over other kinds of activities. Remember that you are the professional, not the client, you understand about health and that's why they are paying you. Don't try to say the "right thing" to your clients just to get their money. Be strict. "I only work with serious professionals that even though they think that they don't have enough time to exercise, are willing to do what I say in order to obtain X, Y and Z results."
That's just an example but the core idea remains the same. If you want to understand more feel free to DM me. Thank you for sharing your business idea.