Weight loss after 5th c-section

[Charmumof5]

Hi guys, I had my 5th c-section last October, and had the inplant fitted in Feb of this year ,since then I have gained 3stone (only gained 1and half stone in my whole 9months of pregnancy), i got it into my head that the inplant was the sole cause of the gain, and had to taken out a few days ago,but truth be told it's proberly just part of it, I'm lacking the motivation big time, I can't stop with the crappy food, my mood is down, I'm literally sleeping days away, Can anyone else advise ways to get motivation

I’ve had 4 sections. The only diet that has worked for me is a Cambridge diet plan. It is almost like I’ve had to go on a plan that is controlled in order for me to lose the weight.
Had my baby last December and have lost nearly 2 stone.
This plan is the one that has reduced my tummy massively.
Have tried slimming world and even though I lost on it my tummy never seemed to reduce.