Went To OBGYN today ...Help

😢😢I weigh 387lbs dr basically told me to lose weight to conceive & I had no chance to get PREGO w/o losing weight & I should consider weight lost surgery then try to have a baby is this redundant?? To you?? Like i don't know he said to lose 25lbs in 6 months, then we could start fertility meds which will increase my chance of a multiple birth.
My thing is I have a 3 year old daughter got pregnant quick and naturally.... About the same weight maybe 30lbs  lighter. 
I don't know I feel some type of way should I
Continue ttc? Or not. Any motivation ? Any stories from plus size moms?