Only you and your physician can decide that. I would say that bariatric surgery is right for many people with obesity and additional co-morbidities (meaning other diseases and illnesses). So if you are obese and have arthritis, diabetes, hyperlipidemia (high cholesterol), hypertension (high blood pressure), chronic infections, trouble completing your own self-care, limited movement, trouble walking more than 100 feet, shortness of breath with routine activities, easy fatigue and tiredness- you should talk to your doctor.
Deciding if the surgery is right for you requires consideration of all lifestyle changes. You have to eat better. You need to eat smaller portions. If you do not change your eating habits, you will not be successful.
If you know you can give up chips, soda, beer, cookies, crackers, drive through, pizza, cheeseburgers, and other products with high fat, salt, and sugar contents, then you may be ready for gastric bypass. If you do not think you can sustain these lifestyle changes, start small and see how you do before you begin the surgical process.
Make one small change a week and you may surprise yourself with your own success!