I honestly feel bad for you. Fresh veggies are one of the most delightful things ever. The leafy, earthy taste of actual lettuce (not iceberg - iceberg is bitter and disgusting). The crunch of celery. The sweetness of carrots. The slight acidity of bell peppers. The flavor of onions. The delish, refreshing wetness of cucumber. Vegetables rule.
I do like cooked carrots and bell pepper so I'm not completely against those. In fact, peppers in general are some of my favorite vegetables as salsa is the one way I truly love raw veggies. I also eat onions raw on salad as well, sparingly, but otherwise cook them. I'm not flat out against raw vegetables, but I don't find many palatable. I've never liked celery or cucumber, unless the cucumber is in pickle form. I don't even enjoy celery cooked, unfortunately. I've always been rather picky. I do like salads when topped with a good vinaigrette type dressing so not all hope is lost and I agree that there are much better types of lettuce out there, but I will pick iceberg over arugula any day. It's good that you like vegetables as I'm sure it'll pan out well for your body and mind in the long run. I force myself to eat vegetables to be healthier but it would be a lot easier if they were a joy to eat, so I could never begrudge you your joy.