A lot of people here have had the same wake-up moment. But in reality, it didn't happen to any of us overnight.
You got yourself into this over time and you are the one that can get yourself out.
I feel I can cry, or just stop living.
Or you can start making healthy changes today that will improve your life immediately.
There is tons of support on this site, and lots of information about healthy eating plans. Just start reading and see what seems like a good fit for you. In the meantime, no more takeaway, start eating more fruit and veggies, drink water every day, and start exercising. It's going to be okay. You can do this!