I came back from FL last spring at 237# and didn't feel good, so I decided to do something about it. Now, let me preface this by stating "I DON'T FOLLOW DIRECTIONS VERY WELL. NEVER HAVE AND PROBABLY NEVER WILL". My sister-in-law told me to try a KETO diet, so I did a bunch of research. Seemed impossible because the only way protein got into my body was via carbs(bun, bread, bagel, crust, etc...). I had to do something not only for me but for her also.
The theory is easy, cut down and eventually cut out carbs(to a point). I decided to go for it and begin taking "baby steps" and educating myself. I first went through the pantry, drawers, cupboards, refrigerator and freezer deciding what to keep and what to give away. No more sugar, flour, soda, iced tea mix, hot chocolate mix, salad dressings, ketchup, orange juice, milk, potatoes and lots more stuff. It's not just a diet change, it's a lifestyle change. It's training your mind and body how to eat, when to eat and what to eat.
I used to crash mid-afternoon when my blood sugar would drop and my "go-to" was running down to BK or McD and grabbing something quickly and returning to work. But the problem started first thing in the morning. I would get up, make a cuppa coffee with sugar in it and half-and-half and then make a bagel sandwich or toast and jelly when heading out. The carbs in all of that turn quickly to sugar in the body when metabolized. So, what you have for breakfast affects what and when you have lunch and over eating late in the afternoon was my problem. Then I would go home, make dinner and overeat that meal as well. The starch that I would eat at dinner, potatoes, carrots, french fries/tater tots(which I love), also turn to sugar in your system. We don't even need to talk about desserts as we know they aren't good for you in any way, not even most fruits! Who knew!
French fries become parsnip/rutabaga / turnip fries.
White sugar becomes Monkfruit sweetener.
Lots of cauliflower. Seriously, it gets used for everything!
Cashew and almond milk instead of regular cow juice.
LOTS of eggs!
KETO has worked for me, I went from 237 to 188 in 8 months. My knees don't hurt any more, my energy level is up but it all comes at a cost. Buying healthier foods is damn expensive! Buying a new wardrobe of pants, shirts, shorts underwear is expensive but incredibly rewarding! There is also a HUGE mental benefit as time goes on. You look better and you feel better. The weight loss becomes a game and a quest.
Bottom line for me is that I like the way that I look and feel much more than I miss the foods that I no longer eat.
Good luck and whatever you decide to do, stick with it and you will see the results over time. Don't get discouraged when you don't see immediate results. It's tough getting started but you will reap the rewards with persistence.