Hello and welcome!
Some people don't need to completely change what they eat, but just how much. I have a friend who was obese and now is a normal weight and she lost it eating things she always had, but with some minor tweaks. She basically used portion control. She hates vegetables and can go whole weeks without eating any, but she still lost weight.
You may be the kind of person who wants/needs to change everything you eat, but you also may not be. I'm in between, and depending on how I'm doing, I eat anywhere from mostly junk to completely clean. Experiment a bit and see what works for you. You can always gradually introduce vegetables in forms that you like (maybe roasting them will work better than eating them raw, for example).
You can absolutely do this. If you can find a way to eat that you enjoy, it makes the whole thing easier and more fun, and even the challenging parts (of which there are many) aren't quite so bad. One more thing: 85% or more of weight loss is eating. Exercise is fantastic for your health, but won't do much for weight loss (unless you're a professional athlete or something). Focus on what you eat. There's a lot of good info on this site, too.