Hmm... Avoid sugar, white bread, chocolates and other sweets, junk food and soft drinks. Chew slower, snack of fruits and nuts. Drink green tea before breakfast and after lunch and dinner. Try to fit in a 5-10 mins workout and... weigh yourself once a week in the morning.

Losing weight is a slow process and if you rush things, you are most likely to gain everything back just as quickly too, so I would suggest a change of lifestyle and eating habits.. it's helpful in the long term. Allow yourself to have a cheat day once a week if you can't give up on junk.

I wish you all the best. I am suffering the same way so I can understand, but don't feel hopeless. I was 72 KGs when I started and I am now down to 68 kgs, my goal weight is 55-58 kgs.

So sorry you're feeling discouraged. I know how it feels to not want to even bother weighing in but it is important. It's a way of acknowledging where we're at, at this moment. Can you pinpoint what it is in your environment that is challenging lately? Have you tracked calories? I think it helps to use a program like "myfitnesspal" and then try to stay within the daily range and supplement with exercise. I too need to get back on my program and feel good about it. I think it helps to stop internalizing and agonizing about it all, but to just get back into routine, habit.

Personal responsibility plays a part and more so — finding the right diet. Many diets fail because dieters make too many drastic changes too quickly, then decide they can’t live with the new program. Remember, these are sustained changes, not quick fixes. Here is a good reading that you may find motivating:
Rapid Weight Loss Do Not Result To Health Benefits
http://www.medshapeweightloss.com/healthy-weight-loss/

I agree with @medshapeweightloss. Too many drastic changes make diets too restrictive. This can later lead to binging on the foods we have restricted down the road. You don't have to cut out all the sugar, bread, carbs, and so called "junk food".

A calorie is a calorie. It is only a unit of energy. It doesn't matter where that calorie comes from. Maybe you want a piece of toast. Don't fret because it's a carb, and think you have to eat a bowl of broccoli instead. As long as it fits into your goal, you can have it. That being said, sometimes you have to think about what will keep you fuller, longer. That's where the difference comes in. Maybe you want toast but you are ravenous. You may chose to have some protein and fat instead because it will satisfy your hunger longer.
It's not about restricting everything. It's about portion control. If you can have things that you enjoy, in correct portions, you are likely to stick to that way of eating better than cutting everything out, and have better results. It took me a very long time to learn this, and I'm finally losing weight that I haven't been able to lose in years.
Like @lorrieonline, I also recommend a site like MyfitnessPal. You can track calories on that site, but even if you don't use that function, there is so much information on that site about diet, nutrition, exercise....just about every single topic you can think of. It really has saved me from myself and put me on the right track. And the support on that site is AMAZING. It might be beneficial just to take a look, even if you end up not using it for anything.

Good luck!

How much do you get up and move around? Are you stuck inside the house? Does the weather affect your mood? Do you have any support people to chat with or good websites that help educate you? I found good support vital

Is there a weight loss group you can join? Hospitals,health departments run programs in the community, some churches or community groups have them . Does your insurance provider or doctor know of one? Online groups are helpful if there is one that fits your needs. Spring is a great time to start.

It is work. Education is a must. Discipline helps a lot. Old routines must change. I found keeping a daily food log showed me a lot. Support from others who were knowedgable was valuable bc that is where I learned where to make positive changes in foods I prepared, bought and ate. There are lots of good websites, books at the library plus a few diet related magazines there also. It is a journey. Enjoy it. Learning to prepare delicious foods, seeing your health improve and feeling better is worth the work.