mother chooses heroin

Iv come to be ashamed having to call you mum,
Turned into darknes can't even have fun,
Your selfish and heartless don't care who u hurt,
All for drugs u treat others like dirt,
Only a year ago I looked up to you,
Now I look at you with hatred at some things you now do,
Rips my heart out when your slouched on the floor,
Feel like my mums begging at gods door,
I can't take this I'm forced to see you slowly die,
Why can't you see mum my pain when I break to you and cry,
I think this is for the best if my mum I no longer see,
Cos your habbits not just taking you its also killing me,