I can't add a lot to the advice so far, except the old adage that "time heals all". Losing anyone close will leave you with both guilt and anger, and suicides are probably the hardest to come to terms with. In time, the turmoil will subside. For now, concentrate on good memories, rebuild a new social circle, and try not to damage yourself too much with the whisky. In a new country this will add some problems - maybe no one else around who remembers your friend to share memories with, but also you have less social baggage, a fresh start should be easier. But really, give it time, it will get better, and you'll come more to appreciating what you did have, and the pain of what you lost will lessen. I won't say "be strong" cos that leads to you bottling things inside and not facing up to them - I've been there, and it's not good for you, it stews and ferments and goes toxic. Allow yourself to be weak for once, if you have a friend you really trust, then let it all out - if not, you could do worse than speak to the Samaritans, they're not just there for potential suicides. If you really can't face another human with this, then take a hike into the bush and scream yourself hoarse where no-one can see. Good luck.