What Could Be Done to Slim my Bulbous Nose? Tip? (photo)

If you don't wish to have any drastic changes made to your nose, then tip rhinoplasty may be the only thing you want to have done. As far as your age is concerned, don't worry about it. I happen to do rhinoplasty surgery on women your age on a very consistent basis. I have attached a link below that provides more detailed information on management of the bulbous nasal tip. I hope this provides you some further insight. 

From your photographs, you appear to be a good candidate for rhinoplasty.  Most of the shape of the nasal tip is due to cartilage that can be removed or repositioned to improve the aesthetic appearance of your nose. Your age should not be a concern since your skin will accommodate any reasonable change in the tip contour.  It is difficult  to say without an examination, but you may not require anything more than a tip rhinoplasty. Seek out a board certified plastic surgeon with good experience in rhinoplasty to discuss your treatment options.  Good luck to you.