Thank you for your question and photograph.
With only a profile photograph of your nose, it is hard to accurately determine what you need to correct you nasal appearance. I recommend that you schedule a consultation with a board certified plastic surgeon who specializes in rhinoplasty to have a nasal examination performed and a review of your medical history to see if you are a good candidate for rhinoplasty. Based on the photograph you have posted, I believe you may benefit from a dorsal hump reduction and tip rhinoplasty. A dorsal hump can be removed by cutting out the extra cartilage along with filing of the bone to smooth out the bump. A tip rhinoplasty includes trimming the lower lateral cartilages and placing precision sutures to refine the tip and make it look more pleasing. In regards to cost, it varies based on surgeon and location. I can tell you that the RealSelf average cost for a rhinoplasty is between $7,000-$8,000. Best of luck in your endeavors.
James Fernau, MD, FACS
Board Certified ENT
Board Certified Plastic Surgery
Member of ASPS, ASAPS, ISAPS, The Rhinoplasty Society, AAFPRS, OTO/HNS, ASLMS, International Federation for Adipose Therapeutics & Science