Walking around with double my body size

I am demotivated today, I dont think I can do this. It is cold outside freezing infact and I am missing my husband. He works in JHB and I work in Utrecht. On top of it all everytime I tell someone that I am working out they come up with a comment which I would rather they did not say, things like" YOU! Lets see how long that lasts" or " You have never been a skinny girl just aim for size 36" or the classic that I heard this morning "Why dont you do a tummy tuck, that will make u motivated to loose the rest of the weight" or "I dont think you will look nice I like you the way you are, uyisidudla esihle". Those who say these things have never taken a step in my shoes, have never worn a size 18 or 42, have never been labeled FAT period. Have never felt the uncomfort in walking around with sore inner thighs because the fats keep rubbing into each other. What adds on to my demotivation is my BMI of 38 - yep mobidly..... (I shutter to even write the word up, will not even say it ). According to my height and age I should weigh about 52 - 55 kgs so say I needed to weigh the latter, it means that I am currently 50 kgs overweight. Can you imagine 50 kgs of cream white fat all over your body, can you imagine carrying all that extra weight or being double the size you should be, on top of all the critism of people saying it cant be done. This explains my back aches... its no laughing matter