LIVE check in Q&A No.72

Im struggling to think of content to put in my newsletter that doesnt take an hour to write. I used to do 'exercise of the week' but this took too long to write. How long should a weekly newsletter be? What are the best KPI's to track and measure? Is it normal to lose clients when you make changes to improve your service? I've really upped my game this month, made a video explaining all the extra stuff they will be getting. and within an hour of my video i had consistent regular clients say they dont feel it's for them / cant continue to pt at this time... Is it normal for clients not to share the same excitement / vision for the service they are paying for? How to set up a pre consultation? And what sort pf questions should I ask? Anything to put in place for planning for future with cost of living etc. Best ways/practices to manage the emotions of running a business. How do you define a CTA and how many should you have What's one piece of advice you'd give your younger self starting out in the industry? I use Truecaoch for programming, check ins and communication etc and I also have a private facebook group for all my 1-2-1 online PT Clients. For my 6weeks programme which I'm launching this month, I'm thinking of Using WhatsApp and the same Private Facebook group. I will not be using Truecoach so all check in forms and support can be through whatsApp however I have not done it this way before. Do I have anything to worry about or consider? Thanks Sam