Hi,
Its really good that your brother wants your help but you may find that you will need some support yourself in order to help him, as it may not be an easy road ahead. The Icarus Trust is a charity which helps support the families and friends of those with addictions. We could offer you the support of one of our trained ‘Family Friends’ who you could talk with. They would also be able to signpost other services that would be able to help your brother.
This is a free service so you might think it worth trying and hopefully you will find it useful and supportive.
You can contact us on help@icarustrust.org or visit the website http://www.icarustrust.org
Its really good that you are there to look after your brother but don’t forget to look after yourself!
Good luck.