Manually changing the nose. Did I create a new shape? (Photo)

There are ligaments that extend from the bottom of somebody's nasal bridge to the top of the nasal tip. If these ligaments should get disrupted from trauma or from repetitive stretching, nasal tip droopiness may occur I hope this is helpful. Sincerely, Dr. Joseph

It is unlikely you've made any significant change to your nose, and, unless you broke your nose at some point through aggressive pushing, it is also unlikely any permanent alterations have occurred from this. Of course, it depends how much you've done, but, without prior surgery, I doubt you've done much or any harm.