Welcome
@AntonyTalor!
I would recommend that you buy the Simple & Sinister (S&S) book, and one or two kettlebells, and just start reading and following along in the book. The price you pay for a couple of kettlebells will be realized back in a couple months of not paying for the gym fees & the trainer's fees. You can workout in your garage or basement. I, personally, have found it harder not to workout at home, when the kettlebells are right in front of me when I sit down. I always could find an excuse not to go to the gym, traffic, worked late, whatever other bs reason I could come up with that I could accept.
The hardest thing to accept, to me and others at first, is that, in the S&S workout is the lack of feeling gassed is expected. This is a workout to be done daily, if possible. You should not be wiped out at the end of your session. I know, this is weird, but the results are amazing.
Another major component for you is to clean up your eating. Find an eating regimen that you can follow, and get going. Same goes with rest. You gotta sleep, your body needs to rest & recover.
To respond to your original request, this is my current exercise program. A pulled muscle in my back led me to kettlebells for rehab, and I never went back to barbells and dumbbells. I am in better shape now than I was last year.
My eating regimen is still a work in progress. However, I am working on it. I have tried intermittent fasting and the keto diet. I am currently looking for one that encourages fresh fruit instead of consuming fat.....but I digress.
The important thing is that you have started down this path. Now, you are asking for assistance, and this forum has this in swimming pools. We are all here to get better personally in our kettlebell workouts, and we have questions just like you do. The neat thing about this place, is that everyone had to start somewhere, and to a person, we are willing to help another if we can......
Again, welcome
@AntonyTalor, now let's get you moving.