I do not think so that if you are sucking thumb or putting finger on the nose in childhood so your nose did not develop.
It may cause the teeth that too incisors to develop abnormally not the nose.
Do not think of it ,and about your nose ,it must be in balance to your face.
But if you are very worried you can see an ENT specialist
or Plastic Surgeon so that they can examine you and explain the problem and suggest Rhinoplasty
surgery if required once you cross 18 yrs. of age.