My own fault

I slipped and fell the day before yesterday. My left ankle is very swollen.
But this happening is my own fault. (is ok but "But this happened due to my own fault" is more natural.)
Since I had been drinking drunk with my colleagues at the time/then.
Firstly I had drunk a beer and drunk then white wine, next, red wine, Japanese liquor "shochu", another, and another... next,next...
I got very drunk and fell down!
I must be careful about over how much I drink:'- (

This is how people in the UK drink!

:)

My own fault

bold= my corrections/suggestions

strikethrough= unneccessary 

I slipped and fell the day before yesterday. My left ankle is very swollen.
But this happening is my own fault, since I was drunk with my colleagues then.
Firstly, I drunk drank a a bottle of beer and then drunk a glass of white wine next, followed by red wine, Japanese liquor "shochu", next,next...
I got very drunk and fell !
I must be careful about overdrinking.  :'- (

Final version：

I slipped and fell the day before yesterday. My left ankle is very swollen. But this is my own fault, since I was drunk with my colleagues. First, I drank a bottle of beer,then a glass of white wine, followed by red wine, Japanese liquor "shochu", and two other drinks before I got very drunk and fell! I must be careful about overdrinking.

:( Eiko, I hope you are feeling better now.