Hi there ~
There is no easy way to weight loss
. Considering your history of surgeries in the past suggesting exercises may be difficult and it may be that you need to see an exercise specialist to take care of your overall hygiene. Also cutting down on your diet might be helpful, under dietary supervision or under the care of a nutritionist. If none of these help, medications may be useful to some extent, consult a psychiatrist
for the same. I hope this helps. Take care and have a lovely day!