Spending 1,000 on a new wardrobe for new body ?

I think you should reward yourself, but don't buy a ton of stuff now. Start with less items for now that look great, and then gradually add to your wardrobe. You might find things you like better later on! Believe me, I love shopping and I always find tons of stuff I want to buy, especially when stuff is cheap like it is in forever21, but it's better to buy staples now instead of spending all of that money at once.