Which is correct
When i was younger, i put my face close to fan to hear my robot voice.
Or
When i was younger, i used to put my face closer to fan to hear my robotic voice.
Which one is right, either first or second one or both ?

Question

Which is correct
When i was younger, i put my face close to fan to hear my robot voice.
Or
When i was younger, i used to put my face closer to fan to hear my robotic voice.
Which one is right, either first or second one or both ?

Answer

It depends. If you did it once then you would say 'Once, when I was younger I put my face close to a fan to hear my robot voice'.

If you did it more than once, you would say ' When I  was younger I would/used to put my face close to the fan to hear my robot voice'.

Answer

The first one is much better. Let it read "when I was younger, I put my face close to the fan to hear my robot voice".

Answer

When I was younger, I used to put my face closer to the fan in order to hear my robotic voice.

- you have some common mistakes/miss a few words.

Answer

Neither.
When i was younger, i WOULD put my face close to fan to hear my robot voice.