Should I stop breastfeeding NOW????

Hi all

Please I need advice. (Especially from mothers if any around here)

I am obese 231 pounds, never been this fat before though I have usually been heavy. My baby is now 8 months and I am really very stressed due to my weight and want to do something to lose weight. I want to kick start my weightloss by fasting and then develop a healthy eating plan once I am back to life!!!!!

If anyone here can relate, as I mentioned before in another post, I have big bones and that body where when you are fat its from top to bottom. And my shape rite now is somewhat ROUND and I am sick of it!!!!. I feel very unattractive and I think my hubby doesn't find me attractive anymore. I feel very low especially when I have to accompany him to businness dinners (he is a lawyer); and I get to mingle with his colleagues'skiny wives (oohh its hell and I will be counting the minutes for when we should leave and get back home)

I had initially planned to breastfeed for 12months but looking at the way I am and the possibility of even gaining more I am having second thoughts.
I feel I can no longer wait to start dieting. My hubby says I should stop and put the baby on formula. I am still in between because I just don't like using formula with my kids. I am afraid that I will regret later for weaning my baby off the breast milk now.It will be good to hear from all your thoughts.

Please help