I think my nose is too pointy and sharp. When I talk the tip moves up and down. (photos)

Hello and thank you for your question. Based on your
photograph, you may benefit from a tip refining rhinoplasty. Your surgeon can
accomplish this by trimming, suturing, and reshaping the cartilage in your
lower nose. Cartilage grafts may also be used to help improve tip refinement.
You may also benefit from a nasal tip de-projection.  Make sure you specifically look at before and after
pictures of real patients who have had this surgery performed by your surgeon
and not just a computer animation system. The most important
aspect is to find a surgeon you are comfortable with. I recommend that you seek
consultation with a qualified board-certified plastic surgeon who can evaluate
you in person.
Best wishes and good luck.
Richard G. Reish, M.D.
Harvard-trained plastic surgeon

It appears from your photos that you could have a good improvement. Computer imaging would be very helpful when planning your surgical goals.

The concept of shortening and widening your nasal tip must be combined with taking down your nasal hump which will become 'exposed' when the tip position changes.

A closed rhinoplasty approach can accomplish making the changes to the nose with all of the incisions placed on the inside of the nose. The nasal tip can be made less pointy and less projecting. The dorsal hump can be shaved down, and the tip and bridge line narrowed and refined. For more information  and many before-and-after results, please see the link and the video below

It is up to you to decide if you want a rhinoplasty. Softening of the tip can be performed, but a full rhinoplasty may be necessary to achieve your goals.  Best of luck.