Hi Terra, I went through that as well. I began in February at 301.6, and had only lost 9.2 lbs. by May (stuck in the 290's), the top 4 lessons I learned were -
You're in it for your health, take care of your body and eventually the weight loss will follow.
Patience is a virtue, regardless of how long it takes us, the important thing is that we keep moving. Never give up on you goal because of the time it takes to achieve it, the time will pass anyway (stole that from a fitness meme lol).
Don't think of what you're doing as a diet, look in terms of a permanent way to be, a lifestyle. Also foods swaps of the same calories can make a huge difference, I learned if a sweet food doesn't have fiber I will probably gain weight or not lose any vs. Vitamuffins (I love these WeightWatchergirl1 on Youtube got me hooked on them) it is a a dessert food but has fiber.
I began losing more quickly when I swapped out my chocolate bars (100-calories w/little to no fiber) for my Vitamuffins (also 100 calories but about 7 or more grams of fiber per serving).
You've been working hard, and it will pay off, just stay strong and switch things up, if what you're doing isn't working. Look at what you have been eating consistently in your food diary and see what may be holding you back.
I have also had good success w/drinking 2 capfuls of apple cider vinegar mixed w/about 8 oz. or less of water, it is hard to swallow at first, but the research says it lowers blood sugar about as well as diabetes medications, and when you lower your blood sugar it is generally easier to lose weight.
Best of results to you girl, keep up the good work!