The thought of policing what I eat and being constantly hungry and grumpy just puts me off before I start. But if I carry on gaining like this, I'll become obese. I'm already very overweight. (5'3" and 11st 9lbs this morning!) I feel so down about it but don't know where to start. The house is full of ice cream, cakes and biscuits, chips and crisps all of which DH buys for himself and DC.
To not feel hungry and grumpy, low-carb is your answer. You absolutely do not experience hunger on this way of eating as the amounts are not restricted, only foods which push your blood sugar up! So you can eat loads of eggs, protein, cheese, plain yoghurt, veggies, nuts. Just no junk. You WILL feel a new you on this way of eating. It is not a diet, as it is not time limited, it is for always. Once you experienced the energy, the mental clarity, alertness, the unbeatably good mood, you wouldn’t want to put cake in your mouth again!!
I am afraid your family needs to be on board though. Especially during the withdrawal period of several weeks while your body switches from being reliant on constant supply of carbs throughout the day to burning fat for energy (including own stores). TBH it’s not doing your other family members a awful lot of good either, so try and wean everybody off biscuits and cake. I find my kids don’t even think of it during the day (have proper big meals), only if DH brings it in, then they want it suddenly. So, honestly, easier not to buy it or have it in the house.
Just to warn you, if you go down this road and you are currently eating a lot of sugar, pastries, chocolate, you will experience a true withdrawal with headaches, possibly disturbed sleep, flagging energy levels, overpowering cravings. Just stick it out and stay on the course, if you have a strong desire for dessert, munch on some nuts or dried fruit. You will find you’ll need ‘sweet’ taste less and less and will feel better every day (and the weight will just drop off on its own). BUT it is easy to be thrown back to ‘the dark ages’ if you partake in sugar again, you will notice the sluggishness, the cravings. So, look after yourself and make sure your partner understands the seriousness of this. To avoid sabotage of your best efforts.
Wrt to your ‘weak’ willpower, there is no such thing. You likely have high baseline levels of insulin and higher blood-sugar which physiologically drives you to continuously seek out high-sugar, high-carb food in order to quickly convert it to glucose in your bloodstream. Once you start normalising the insulin/blood sugar, your appetite will return to normal, you will stop thinking about food all the time, will feel indifferent to cake and generally ‘forget’ to eat until next meal 5-6h later.
Good luck. It is hard, but doable and so so worth it!