Hi Yuvette, welcome aboard.
FYI, 1 pound equals around about a half a kilo (0.454 kilos to be exact).
Therefore at 142 pounds, you weight approximately 65 kilos which isn't extremely heavy if you are about average height.
Congratulations on your level of exercise, but it is a pitty that you are not taking advantage of all your hard work by eating poorly.
If I were you, I would start off by modifying my breakfast. While chocolate cake is great taste wise, it is a terrible breakfast choice.
Why not try a whole-grain cereal or even a mixture of good-tasting cereals with very bland but healthy cereal.
Add a slice or two of fruit toast and a small glass of fruit juice and you are well on your way.
Once you have your breakfast sorted out, then you can start to look at your lunch and dinner options and see if there are some things that you can either eliminate altogether, or reduce your weekly intake of.
Many of us fall into the trap of thinking that because we're exercising we can eat what we like. Fortunately for you, doing this hasn't caused you to be excessively overweight, but if you reduce or have to stop exercising for any reason (like an injury for example) your current eating habits will see you pack on extra weight very quickly.
If you enjoy sweet food, that's OK, particularly if you are exercising everyday. But instead of eating them all day, everyday, you might try reserving them as a treat every now and again.
Remember, because you are asking so much of your body during exercise, it needs healthy nutritious foods.
Again, welcome aboard, good luck with your goals and I look forward to reading about your transformation into a happier, healthier person in the coming weeks and months.