In order to be able to best guide your questions, a thorough history and physical examination of your nose would be needed. Also, the best assessment and plan would be made by viewing photos from different angles of the nose including a profile view from both sides as well as a base view (view from the bottom of the nose) and views from a three quarter angle of the nose. It appears, however, from the frontal view that you do have a significant deviation of the outside of your nose which may correlate to the deviation of the septum on the inside. I like to develop a plan based on an assessment of the nose in thirds. The upper third of the nose corresponding to the nasal bones, the middle third corresponding to the cartilages are either side of the walls of the nose and septum and the lower third comprising the tip cartilages. Most of the deviation in your case is of the upper two thirds of the nose. The crooked nose is one of the more challenging issues in rhinoplasty surgery. A rhinoplasty in conjunction with a septoplasty would address your crooked nose as well as your nasal obstruction. Given the complexity of these issues, it is best to be evaluated by a surgeon who specializes in rhinoplasty.