20M 5,8" 99kgs HELP ME GUYS!!

Last photo is me 3 years ago

Guys I've moved away from hometown 3 years ago and couldn't workout all these years, I want to start again please help me I've gained 20+ kgs past 2 years and have lost a lot of confidence etc. I need to get back in great shape I'm 5'8 and 99kgs around 33%bf Please help me! Nutrition, workout routine, diet and every change I need to make, thank you a lot !