meal ideas with high cholesterol/sugar levels

Focus on cooking from scratch, the more basic the ingredient, the cheaper the cost. If you're not in the habit of doing that, you'll need to ration your spending to cover basics like spices, but once you have things like that in your cupboard, you don't need to keep buying them every week. Buy plain, frozen vegetables without sauces or butter added, it's cheaper per serving than canned. Supplement with fresh produce when it's affordable, but build up your supply of frozen so it's always on hand. Buy meat in large quantities, and spend the time after you get home portioning it down into smaller meal sized ones, then repackage it for freezing so it won't get freezer burn. If you can get a vacuum sealer at a 2nd hand store, that's great. If not, use freezer bags and a sink full of water, put the meat in the bag, lower the bag in the water until the zipper is at water level, shake it gently to get any trapped bubbles out, seal it, then remove from the water. The less air inside the plastic, the less opportunities for freezer burn. Try to get to a point where the only shopping you're doing is for things that are on sale, but the bulk of your meal planning comes from what's already in your house.

That should help with your budgeting. From there, the best way to reduce cholesterol is to lose weight, period. It's a tiny fraction of the population who are affected by specific foods with regard to cholesterol. To reduce sugar, what you're really doing is reducing carbs. Use a calculator to figure out how many calories you should eat, and set the options on the calculator so that your carb percentage is smaller than your fat percentage:
http://keto-calculator.ankerl.com/
http://scoobysworkshop.com/calorie-calculator/

Either of those will work.

Transfer the numbers it gives you to MFP, and use that to make sure you keep your carbs at or below the number of grams you're given, your protein at or around the number given, and fat fill in if you're hungry, as long as you don't go over your limit.

If you're currently drinking a lot of pop, eating a lot of chips or fast food, you can drop your carbs drastically simply by swapping out pop for water or tea, the chips and french fries for vegetables, and opting for regular meat and vegetable meals over burgers or pasta.