How much weight can i lose by atleast the middle of august?

I'm starting the 30 day shred. I'm cutting out all junk food. Nothing but fruits, veggies, and water. I'm so tired of being fat, its so hard for me to feel good bc all my weight goes to my stomach and I look so funny :( I just want to lose the fat on my stomach , I weigh about 175. I should be weighing around 130-140. But its not really about numbers, to me its whether I feel good in clothes and stuff , ya know? Does anyone have any advice on weight loss and the fastest healthiest way I can lose atleast 25-30lbs by the middle or end of august? I hate my body so much :( help? I want to be able to fit into nice clothes and feel good