I cannot agree with this enough. Don't just look at your current situation and you're current health; you're trying to set yourself up for success in your future. Even more seriously, you're trying to get healthy so you can BE AROUND for the future. The life span of overly obese people are so much shorter than the average person. Not to mention, the quality of life.
I have extremely well meaning loved ones, but not one of them have struggled like I have with my weight. My mother was "fat" all her life but the most she's ever weighed was 140 ( 5'4'') smh. Believe me, I understand your concerns; I've gone back and forth with my decision to pursue surgery. I've let myself be influenced by people who have ZERO understanding of what my life is like. I finally made the call because it dawned on me that I needed help to get better; that im not as strong as I thought.
Ultimately, you are the only one who will be able to make this call; dont let anyone else do it for you.
Good Luck!