"She wasn't in the right headspace, she really wasn't.
And she wasn't being a mum, she wasn't being the mum that I knew from when I was a little boy," he said.
According to his account, the children often had to fend for themselves by preparing microwave meals while their mother remained absent.
"The amount of love she gave me was so immense that that's what I missed so much.
Mum was on drugs, and she could not look after us, and that is the reality of it.
She couldn't," Junior said.
Junior detailed his relief at having a stable alternative residence with his father, which allowed him to recover his mental clarity during the family crisis.
"And then I got fed up. I clocked on that this was a very unhealthy environment, and I needed to get out.
I did leave.
I think I was about 14 or 15, Thank God that my dad was stable, because that's the house that I went to and gained my sanity back, you know," he said.
He added that the situation severely impacted his self-worth while he waited for his mother to address her substance issues.
"While I was wishing and hoping that my mum would come back and turn herself around.
It made me feel like I wasn't good enough, because she wasn't fixing herself for me," Junior said.
Junior also commented on his mother's recent January marriage to Dubai businessman Lee Andrews after knowing him for only weeks, calling the choice highly irresponsible.