What are your thoughts on discounting the first month of PT just to get people into your business?

How many hours actually doing in person sessions is the average? 

Why and how would someone go to a PT to lose weight, if they are already spending c£200 on GLP1 jabs?  Are our jobs slowly becoming redundant with people able to find whatever they need online now (training videos, plans etc.) and now lose weight with drugs?  I don't really see the need for our profession in the future - why will it be needed?

Its my first week as a PT/FC at a commercial gym (puregym) what are 5 things i should look to do this week in person in the gym? 

squat, bench or deadlift

First negative feedback I've had on my SGPT this week which upset me, how best to handle that. Ask others for feedback? I've tried to take as constructive but? (It wasn't to do with my coaching, more others in the group and not getting along with them) 

How to upsell to current clients? 

I have 2 clients on basic personal training (sessions only) currently and I know how well they would do with a little more guidance/support/accountability but i'm unsure of how to show them they need it (: