From the details provided,its not clear that is the spacing occurs in between all the teeth or only in between upper front teeth?
If there is spacing in between upper front teeth,Which is caused usually due to high frenal attachment,i would advice you to get frenectomy
done initially by your dentist
Then you can proceed with orthodontic appliances for permanent correction of teeth.
Its better to get treatment by an orthodontist.
Please do avoid using self-applied appliances.
This can worsen the condition,rather than correcting the defect.
Hope this helps.