Hi Petra, I know it's hard, I feel the same way, my reflection hasn't been the 'accurate' me for around 15 years. I feel frumpy and dumpy and am usually the heaviest in any group setting an inwardly cringe when the phones come out.
I see it as, taking a long time for me to get to this point and it's going to take a long time to get to a weight when I feel happier with my appearance. You may start to feel more encouraged when you feel a little difference along the way.
I looked at old photos, I look much slimmer at 13 st. I remember feeling so heavy in those pictures, but now, I look back with kinder eyes and that's still 3 stones from my healthy weight bracket so I have made 13 st my next goal and I can hopefully reach that by October.
Weight loss is a marathon not a sprint unfortunately, Rapid weight loss can have its pitfalls, too like skin and muscle tone and I would be concerned about unknown, longer-term side effects with WLI although a quick fix is so tempting.
So what hopefully, will work for me is forgetting the bigger picture and a possibly unattainable old slim me but focusing on the smaller increments and setting a more realistic goal of possibly, hopefully, dropping a dress size in around 3 months and having a bra that doesn't leave red marks when I take it off.
Please don't feel too discouraged, you're in a room here full of people who do understand.