Questions about training

I read you make £15,900 while in training, is that monthly payments that equate to that amount and if so, how often do you get paid and how much?

I hear something about “Star candidates”. Apparently it’s promising candidates that get given stars on their rank slide, if they are a thing, what are the requirements to become one, and what are the benefits of being one?

What type of training would you recommend to properly prepare me to get to the level of passing the Royal Marines Entry requirements?

I’ve heard the Royal Marines is a much more mature environment, is it true?

Cheers.