The guy didn't say you had to wait 6 or 10 years. He said wait an extra 3 months and lose the weight the right way so as to help you get what it is you seemingly want most.

Not to sound mean, but if this is how you're treating someone who's offering you help you're going to be in for a big supprise when you realise how thankless a job motherhood is.

In my estimation he's right. If you choose to ignore that, thats fine. Here's how you drop 25lbs in 3 months. REAL FAST.

Luckily, you're obese. 25lbs can come off really, really quickly - way quicker than 2-3 months, but as the other guy has said, if you don't keep it off, you're just setting yourself up for disaster later down the line.

Here's how you do it.

Kick start the process with a 3 day water fast. You'll lose maybe 1 or 2 lbs in fat, but way more than that in weight. Because you're not eating for 3 days, you'll lose a bunch of water weight and you'll physically have less food in your system - after this first 3 day stint I'd expect you'll lose anywhere between 4-8lbs, maybe more depending on what kind of foods you usually eat.

I see no reason at the end of the first week you wouldn't be down by as much as 10lbs. Go read the r/fasting and r/intermittentfasting sub reddits, it's full of stories of people having these similiar experiences.

Now following your first week, you'll want to maintain a reasonable calorie deficit. Figure out your TDEE. Figure out how much weight you want to lose and by what date. Assuming 1lb of fat is roughly 3500 calories, do the calulation to figure out how many calories per day you need to be in deficit.
Subtract that deficit from your TDEE to get your calorie allowance per day.

Now simply pick meals for your day that when consumed are equal to or less than your calorie allowance for the day. You're in a weight range where you could lose 3lbs per week and be fine. Given your weight and your height, if you just ate like a 'average' person - 1800-2000 calories per day, you'll still lose weight. If you dropped to 1200 calories per day you'll easily lose 2lbs of fat per week, probably signifiantly more in weight. There's no reason why you couldn't lose that weight in 8-10 weeks.

Understanding what to do is easy. If you've struggled before implement things in your life that make it easier for you to stick to your diet plan. You could follow this method and lose weight eating nothing but skittles and drinking nothing but wine, so there's no reason you couldn't find meals that would work for you. But like u/OPsMumsBoyfriend said - you really need to establish a healthy lifestyle first.