Any advice to cut back on sugar/junk?

I’m not the healthiest person. I eat quite a lot of junk and i’m led to believe my acne stems from the excessive junk food i eat. i want to lose weight because it’s summer and i’m not very confident with my body. obviously all this has to begin with a healthy diet.

another problem is sometimes i fall into some sort of turmoil of anxiety and i binge to make myself feel better which kinda puts me a few steps back.

I’m just looking for advice on how to begin or maintain a diet where i’m not so tempted by junk. Any help or advice is appreciated. Thank you.

Any advice to cut back on sugar/junk?