I'm fairly new to this game, and I'm yet to see it have any effect on the scales, but what's worked to get me to eat less is to write down everything that goes into my mouth (I calorie count, and so sometimes I forget to write down the water, because it doesn't have calories, my bad)- I feel accountable to someone (or even myself) rather than just letting the food slip past without really being noticed. Another thing is to find foods that fill you up and have them for your main meal. My big success is porridge (oatmeal)- 50g made with water is 187cal, and it keeps me full for hours (I add 100ml of 0.1% fat milk- 35 cal, and sometimes 75-80g of frozen berries, which is an additional 21-25 calories depending on serving size and berries used). The berries make it feel like a treat, not a diet (and they're a serving of fruit for the day).
I also reach for vegetables (raw or steamed, nothing added) if I'm peckish/ hungry and it's not meal time. Quick, easy (when I say "steamed", I mean "I chop them up, put them in a microwave container, add a little water in the bottom, lid on top, and zap them"- varying times depending on one's microwave, the amount used, and the vegetables steamed), incredibly low calorie for sometimes quite a lot of bulk (e.g. 260g- 9.17 oz- of spinach is only 65 calories).
I suggest not trying to actively deprive/ starve yourself- eat when you're hungry, just eat soemthing better than you would've chosen before. I've been on and off dieting since I was 15 (about 10 years) and this deprivation thing is what I've been consistently doing up until recently, and consistently failing at.
Edit to add: I'm not a doctor, I have no medical training, just someone who's trying to see what works. I'd recommend looking at nutritional guidelines for your country, including things like food pyramids and guidelines for how much meat/ fruit and vegetables to eat per day as a good guide set up by experts. (NHS Choices- in the UK- has some good, clear advice, although I also incorporate some guidance from Nutrition Australia)