Welcome, Visual! It's nice to have you here.
First, just because you have less you'd like to lose than others might doesn't mean that your challenges are petty or silly; far from it!
I *still* don't know as much as I would like about diet and exercise, but I can tell you that there are lots of ways to lose weight in a healthy manner without "fad diets". Exercise is essential for overall health, and can improve the rate at which you lose weight for a couple of reasons (exercise burns calories, and greater muscle mass means your body burns more calories), but your food intake is 75% of the game. The central tenet when it comes to weight loss is calories in vs. calories out. If your body needs more calories to function than you consume on a daily basis, you will lose weight. That's what it all boils down to.
I am a calorie counter, which means that rather than a specific diet where I limit certain items or foods, I pretty much eat what I want but track every single calorie that I consume and keep those calories within a target range (some use an exact number) every day. That's far from the only way to diet, but it is a pretty easy way to get started (even after 3 months of this, I still don't even use an online tracking program - I just keep track of everything in Excel). Eating "pretty much what I want" but within a specific calorie range
can mean crummy rather than nutritious food (for the most part, a calorie is a calorie is a calorie), but when you restrict calories you very quickly find that you can eat a lot more, not be hungry, and have a lot more energy when those calories come from nutrient-rich foods.
I just posted this elsewhere, and it might be helpful for you. This calculator gives an indication of how many calories you should aim to consume daily based on your height, age, weight, and the amount of exercise you do. It can be useful for targetting your food intake, and also for motivation for exercise whe you see the difference in how many calories you can consume when you increase your exercise!
http://www.goodhousekeeping.com/heal...e-calories-bmr
On the exercise front, I hear you about living in a sketchy neighborhood. I'm comfortable going out for walks alone during daylight hours in my neighborhood, but I wouldn't go after dark alone. And since late evening (9 or 10pm) is the only time I have available to exercise on weekdays, that means a gym is a necessity for me. If you have time during the day though, what about finding a nearby park that you can jog in, or a local school where you can use the track or fields in the evening?
Though it's tempting to suggest waiting, you may want to buy a scale.

Everyone is different, and people here will advocate different things in regards to weekly vs. daily weighing, but let me tell you... wherever your weight starts, when you see those numbers begin to move down, and you know those changes are due 100% to the effort you are putting in, it is an awesome feeling. The scale, though, is only one way to track your progress. You could also get a tape measure and use it to take your measurements each week.
It very much sounds like you've started in the right direction - healthier snacks, lots of water - and I hope that something in my disorganized post might be a little help to you. This place is amazing for information, support and encouragement, and I hope you'll stick around and use all the help here as you work to obtain your goals! Good luck