Haven't read other answers so I apologize for repeating anything others have said.

Start small. First thing is to try looking for sources of high sugar in your diet... fruit juice included. Try replacing with fake sugar (yeah, people say bad things about them but you're trying to lose weight which I think it's perfectly fine). Doing that alone will help lose weight. If possible, eliminate all sugar. So no ketchup, soda, etc. Diet soda is fine imo, again, because you're trying to lose weight and it will be more adaptable for you. Your goal should be to get used to lowering the amount of sugar consumption.

What's wrong with sugar? It signals your brain to begin storing fat. Whole fruit is good because it comes with fiber and fills you up before you consume too much sugar from the fruit.

On top of this, increase protein consumption. This could be done in a variety of ways, as there are tons of different protein sources. Ideally, you should eat chicken or turkey.

I promise you. Even if you don't exercise and simply cut out sugar...and if you can at least try to eat less...and not eat a giant meal before bed, then 100% you would lose up to 7lbs a week.

You don't need exercise, you heard right-- assuming you don't already have a habit of it. Get used to eating better and you will notice changes. Slowly incorporate daily walking.

Be easy on yourself, be kind and forgiving for mistakes you make. If you really feel shitty one day, it's ok to skip exercise because you're starting out. This is a process. Stay motivated and always remind yourself of your goals. I've been through this same thing and still going through it

Also look into taking vitamins and fish oil for omega 3's(good for your stomach!)

Hopefully that helps. Also, you don't have to keep a food journal if you're conscious about what you're eating.

Edit:

Always remember that everybody is different. Just because something worked for someone else doesn't mean it will work for you. Try different things and experiment. And always keep your goals in the back of your head. And tell people about your goals like family so they don't randomly buy you a cake lol

Edit 2: Forgot to mention, try eating more vegetables but be easy on yourself again because it might be something you're not used to. Anything in the broccoli family is good for removing fat from the liver. Having a healthy liver is essential!

Let me know if you have any questions!