On my own/ On your own etc means 'Alone '

On my own/ On your own etc means ‘ Alone ‘

On my own = by myself
On your own = by yourself ( singular)
On your own = by yourselves (plural)
On our own = by ourselves
On their own = by themselves
On her own = by herself
On his own = by himself
On its own = by itself
Learner drivers are not allowed to drive on their own.(or by themselves)
The box was too heavy for him to lift by himself.(or to lift on his own)
A: Was there anybody with him when you met him yesterday?
B: No, he was by himself.
Those small children should not be allowed to go swimming by themselves.
We didn’t get workers to decorate the reception hall. So we did all the decorations on our own. ( or by ourselves)
I always take my family with me when I go on holiday. I don’t like to go on holiday on my own.

SVK