The weight is not the most important part it is doing the form properly. You build up to more weight over time
Caroline Girvan is good tbh. It shows you the form and it is slow. Slow extension of muscles is what will help grow/strengthen them because it’s the full extension of them that you need to complete a full rep.
one kettlebell does limit you a little if you want to do certain exercises although most can be adapted to one KB so I have kbs and have adjustable dumbbells/barbell up to 20kg and I change them for whatever I am doing. I know I could deadlift more than 20kg but I would need to do that at a gym. it is only once I find things really easy at home (which isn’t yet) that I will go do that.
With Caroline Girvan you are getting 20-40 seconds of reps then rest in most of her videos, which I think is useful and then you do repeated sets/reps. You can count reps yourself but it is actually useful to have the timer on screen. I don’t always go as heavy as she does and if I am lighter I might do more reps than she does
I was worried about hurting myself so I started out on machine weights as they have all the seating set up and it’s very controlled. I worked up to free weights when I felt more confident about not hurting myself. Boringly I also watched a lot of YouTube videos about good form
you need to know what you can lift/pull at least 10-15 times in a row. So I can lift something heavy maybe once or twice but this is just a few reps so not really much use. I know I can lift 8kg (4kg each arm) above my head in a shoulder press at least 15 times x 3 sets and by the last set it will be quite hard. Once it’s not hard anymore I will go to 10kg. Start with something light and see what you can do comfortably
I wouldn’t watch anything with people who ego lift - this is just lifting something super heavy! Also there is a lot of crap on Instagram with people doing stupid form like arching their backs to chest press on a bench or constantly going on about Bulgarian squats being the only way to grow a glute