What is this?

I started a new job a few months ago and requires a lot of walking around and I noticed this a month after I started my job, and it’s just gotten worse. I thought it was a bruise and I don’t think it is anymore. Is it toenail fungus? If it is can anyone give me tips on how to make it go away? There is a ridge towards my cuticle and looks as if the other part of a healthy nail is trying to grow in. Someone help! SUMMER IS JUST AROUND THE CORNER fml 🙄