I am so angry at myself.. 13 to 16?!

I am so angry at myself.. 13 to 16?

I went on a diet 6 months ago.. I went from a size 15 down to an 11. All my clothes I bought were 11/13s and I was happy with my body because Im tall (5'9") so I didnt look too fat.
Well, now Im a 16 again, and it pisses me off seeing like 15 pairs of CUTE pants I cant wear.
1)How much weight do I need to lose? or inches? to get back into a 13?
2)And, please tell me how I can get to the 13 and how long itll take. thanks you!!

Judging by your previous bull***t questions, as well as being on a diet, you're also heavily pregnant. F**k off, stop asking s**t like this. You're clearly being dishonest. As well as insecure and in need of validation from strangers.