Write a letter to your younger brother advising him to say prayers regularly.
Your letter just to my hand. Hope that you are well. I am also fine by the grace of Almighty Allah. Here I would like to tell you something about our duties to our creator. We are, first to all, Muslims. As a Muslim we should say prayers five times a day. It is Farj and none can deny it. So, I advice you to say prayers regularly. It will not only help you get the blessings of Allah but also give you mental and spiritual satisfaction. Whenever you are in danger, seek help from Allah. Only he can save you.
So don’t forget it. With best wishes to you and your class mates.