There's a film from television that I watched as a child, but I don't remember its name.
It was about a young person who couldn't cope at home, somehow her father was also rich, I think, and she was able to get all the materials, but decided to go for drugs, etc. She was homeless and always had that one green laptop with lots of stickers on it?
That should have been Trainspotting 1 or 2, I haven't looked at it for a long time.
Here are the trailers.
Trainspotting
Trainspotting 2