If you want to be successful in this team, you won't have to work 40 hours, but 60 or more. If you can't do that yet but you want to become a better version, the team will help you get there.
If you just want to be an ordinary employee, working 40 hours per week, you can do that also. But don't expect massive changes in your life. You have to work hard for those. If you do want such changes, you will find help here.