Alright well this might be longed winded lol...I started with lifting with my uncle when he and my aunt moved in with my grandmother (whom I lived with as well). He loves to lift everyday so we bought a cheap Olympic weight bench off Craigslist. Because of our schedules I woke up at 3pm and thats when he got home. We would lift and just talk for hours. Before I knew it I only had a small amount of time before work after we were done. So I would shower, eat finally, then do my normal internet browsing and video game playing before work. Without lifting, I would have been eating and playing games all day and then went to work at night and continue to eat gas station food.
So what I realized is because of working out I wasn't eating as much because of the time we spent out there on my back-porch lifting and talking. A month goes by and I'm getting stronger (I could only bench the bar and I worked up to 90lbs at this point) and I hop on the scale at work and notice I lost 4 pounds. I figured well shit I might as well keep the streak going. I continued on like this for a few months and got down to about 320ish. That's when we finally made the move and got gym memberships. When we got gym memberships, my success in weight loss got to its best. I discovered Calorie counting.
This is the most important part. After discovering the basics of this simple energy in vs energy out is when I had my biggest and current success. I found r/fitness and read the FAQ, and treated it as my bible because it was working. I used calorie calculators to figure out much I should eat based off how much I work out. I could eat a nice amount of calories and still lose 2lbs a week being 320lbs and working out 5 days a week. So I was still able to eat junk and be at a deficit to lose weight. As time goes on you have to adjust the numbers. You'll start making better substitutions for junk food. Starting off at being morbidly obese calorie counting will help slowly educate you on how to eat. You will become addicted to your success and growth into fitness and nutrition. So really thats it. My success was a I had a routine. I counted calories and I became really obsessed with making the most of my calories and getting better at fitness in general.
If you have anymore questions after that wall text lol just pm me