What should I do to get my nose to look similar to what it did prior to surgery?

I had a septo/rhinoplasty to fix my deviated septum and remove a bump, the surgeon however made changes to the tip without my consent. I went to Lima, Peru for the surgery and he will not refund or make any corrections. My nose was long, ski-sloped, and with a bulbous tip pre-op. My tip now is retracted (too small for my nostrils), not defined, and straight from profile. I would like a revision in May but would like to know what I need for it to look more like it did preop. Thank you so much!