Sometimes "just do it" works, however more often it just increases the resentment one feels.
One technique that works with children is simply presenting them with the food, without any pressure to eat it, on a number of occasions. After about nine or ten, children will come to accept the food and start eating it.
I'm not sure how well this would work trying it on yourself. However, I think gradual exposure is a better idea than trying to eat a whole portion straight away. If you live with someone else, you could ask them to put aside 10% of their meal for you to examine. You could may try a little bit, but more important is getting used to the idea of the food.
Smell it.
Practice cooking it.
Put a little bit in your mouth to get used to the taste and texture, but allow yourself to spit it out.
Eat it with a load of sauce.
Eventually it will become less unusual and more acceptable.