Certainly quantities are important.
If you eat more then you will gain a weight.
But one important thing is when and how much and what you eat.
Quantities and what is quickly absorbable...
There is different type of sugar.
One is white sugar that you can buy from shop another is fruit sugar you get from fruits.
Bad is when your body sugar level goes up and then down, up and then down...
In bodybuilding you can see result after fiew months! But not from mirror.
That takes time. You can see results from gym when you can lift hevier stuff then u were able before
Try swimming.
Note! As music is mottivation for many of us buy swim mp3 player.
Those will attach to your swimming googles and then you can swimm (also under water) and listen to music.
Helps...
