Need job interview clothes

Hello. I'm a 22 year old autistic woman, and I've never had a job. I'm currently looking for one. My problem is, when I was 15 I was sexually assaulted. Since then, I've struggled with year-long cycles of binge eating, followed by periods of starvation. My weight has fluctuated a lot over the years. The last time I was frequently attending interviews I was a lot skinnier, and I had a set of nice formal clothes I used for them.

It's been a year since then, and I've gained a lot of weight. Those same clothes don't fit me anymore, and I don't have enough disposable income to buy myself a new set of interview clothes. I'm terrified of being accepted for an interview and not having anything decent to wear, and therefore not getting the job.

Please help me out. I hope, in the future when I get a job, that I'll be able to pay it forward.

My PayPal: paypal.me/dawnzZz19