You haven't said what treatment you are receiving.
It should be daily allopurinol to get your uric acid below 6mg/dL. Gout flares will still happen for a few months, though they will decrease in frequency and intensity, and you need gout pain treatment for this.
You also need to loose weight slowly. No need to worry about special diets (though more fruit and veg is helpful) – just try to eat a bit less and exercise a bit more. Gradual improvement means you are more likely to change habits (most people never stick to rigid diet plans, and often gain weight after a few weeks). Also, rapid weight loss can generate more uric acid.