I want to know how to do this

So idk how to do this exactly. I've lost quite a bit of weight from work and exercise but not enough. I'm 18m and iv been fat for like 7 years I weigh around 230. I wanna be around 160. So basically, how do you control the urge to not eat? Especially with me I eat when I get angry and shit or stressed which is a lot. Other times I just eat and I can't help it. I want to try this fast thing idk how I should do thag and how do I stop myself from eating?