OP, I can sympathize - I have epilepsy and am not allowed to drive.
Overall, what matters is you're getting less calories than you expend. Get the myfitnesspal app (or a similar calorie-counting app) - I use it and it's great at making me aware of how much I'm consuming. It'll calculate for you how many calories you need in a day to lose X amount of weight in a month.
Drink only water, or plain coffee or tea with a bit of milk if you need to. No juices, sodas, milkshakes, etc.
Have regular meals. Again with the myfitnesspal app you can figure out how many calories are in each meal. I like to have each meal around 500 - 600 calories.
Try not to snack too much, but if you do, eat veggies. You can eat a lot of veggies and it'll be low calorie. Fruit once or twice a day is fine too. I like eating a lot of carrots as a snack, or bell peppers.
Get a bicycle or walk everywhere. I like exercise with an explicit purpose beyond "for my health." Biking is great for this, as I'll take it to the grocery store, doctor's, etc. It depends on how much you weight and how fast you bike, but you can lose about 300 calories in a half hour bike ride. This means you can eat more too!
You don't have to avoid carbs, and weight loss is easier if you keep eating foods you like but in controlled portions. I love pasta, but instead of my usual 80g for dinner I serve 50g and fill up with proteins instead. If you're exercising regularly, you'll want to make sure you get your proteins. I try to balance my carb intake by having carbs as a side for one meal a day. For example, if I have a chicken salad for lunch it's fine for me to have carbs for dinner.
Lastly, don't hate yourself if you have a "cheat" meal or snack. Once a week is okay - overall, as long as your cheat meal isn't 1500 calories it won't affect you too much, especially if you exercise. Just remind yourself that weight loss will be up and down, and as long as you keep at it you'll get there.
Good luck OP!