Any ideas or advices would be appreciated
Sometimes working out more is easier than eating less. i recommend you find an athletic hobby. Going to the gym boring and eats up a lot of time time going there and back, changing, showering , etc. Whereas if you decide to really love playing DDR, or swimming, or playing ice hockey or whatever, it's much easier to bring yourself to do it.
The ideal situation is that you "need 5 hours of workout per week" but you actually do 10 without ever even counting, because the athletic thing you do is a lot of fun and you'd do it anyway even if you didn't care about your weight.
Plus, that way you can eat all the chocolate cake and ice cream and soda you want without worrying about it.
That said, depending on your circumstances it might also help to make sure that you're eating
enough of important things, like protein.
Are diet sodas okay?
No. There are
some studies that show that diet soda can contribute to weight gain. Some are theorizing that it has something to do with intestinal bacteria processing the stuff that your body can't digest. Others are suggesting that it's purely psychological, and if you "feel good" about drinking "yay diet" soda, you tend to not feel as obligated to work out as much. There seems to not be a strong consensus. But either way, they're also generally bad for you in other ways.
Heart risk, diabetes, causes headaches, etc. if you can, drink water. If you can't, it might be better to drink regular sugar soda over diet and simply deal with the extra calories.
Again, easier to work out more than to always feel hungry and like you're suffering and not enjoying the things you like.