First off, you need to lose the weight for yourself, not for anyone else. If you don't want to do it for yourself, then you won't stick with it.
Secondly, there's no big secret to weight loss. It just takes commitment and will powers.
-Losing weight and being healthy is 70% nutrition and 30% exercise. The first thing to do is eat a healthy diet. Soda is probably the unhealthiest thing most people consume on a regular basis; you're basically drinking sugar. If you drink soda, cut it completely out. Your daily allotment is 2000 calories. Also be mindful of calories from fat. Don't eat out at all. I know that's probably really hard to do since you work in food service, but if you're serious about this you'll never eat at work again. Cooking at home is a great way to cut down on calories and to save some money. Don't buy frozen, microwavable food. That stuff is junk. If you're like me and you're not an experience cook I'd recommend finding a few easy, healthy dishes you can make at home. These can be your staple meals to build a healthy diet around. Also, give yourself one day to cheat. Don't go completely bugfuck crazy, but allow yourself a guilty-pleasure meal. It's better to have a bowl of ice cream once a week, then abstain for a month and then completely binge. If you give in to controlled cravings, you'll be better off.
-Eat breakfast. This is a hard one to do if you're not already accustomed to eating breakfast, but get into the habit. It doesn't have to be an elaborate meal, but you need something in your stomach in the morning to kickstart your metabolism for the day. Maybe a bowl of cereal and some fresh fruit. If you've got the time, have a couple of eggs.
-Exercise at least 4 times a week if you can. Ease yourself into it though. If you push yourself too hard you'll burn out and quit altogether. I'd start by maybe doing cardio three times a week for a month and then adding an extra day after that. Since weight loss is your goal, cardio should be your main focus. Start with vigorous walks for half an hour at a time. Work your way up to jogging. I like to alternate two minutes running and one minute walking, and that may work for you, but you want to find a pace that works for you.
-Strength training is a great way to burn even more calories because you're muscles will continue to burn after you finish, but keep in mind it should be done to supplement an aerobic work out. Again, find a level and a pace that's comfortable to you. Don't worry about where other people are at or where you think you should be at. Everyone starts somewhere. Remember, when lifting you want to start with larger muscle groups and finish with smaller.
-If at all possible, find someone to work out with you. It's much harder to slack off when you have someone depending on you. I'm almost certain I wouldn't have been able to keep up my exercise regimen without an accountability partner.
-Money and time make this one a bit harder, but if at all possible find an active activity that you enjoy. It's a lot easier to exercise if you don't hate what you're doing.
-Drink water. Lots of water. You should already be drinking at least 8 glasses a day.