How did I go from 120 to 179

So I have gained so much weight over the last 5 years. I need yo get on my game and get healthy and in shape. If you guys have any tips for me i will appreciate it. Ii dont even like taking pictures anymore. My top 6 pictures are from when i was 110 to 120 the bottom 3 are from a few weeks ago. The one with the red hair was from a few months ago. Each week i will be posting how much I loose 🎉or gain 😔. Hopefully this motivates me to leave the sweets and become healthy again, which is my main goal.