Thank you,
My mum took me for blood tests that came back negative so that's a bonus. I'll just try and step back into it (exercise I mean). My mum's dad has diabetes so I'm always careful about what I eat, but I'll have another look. Thank you again.
rach3l98
You should first ask your parents to take you to see your doctor to make sure you don't have a medical condition that might cause you to lack energy. Some common ones include diabetes, thyroid malfunction and vitamin B12 deficiency.
If none of those are an issue, then yes, exercise will help you have more energy, stamina and motivation. Start slow, even if it's only 5 minutes and work up as you go, so you're doing at least 30 minutes of moderate exercise/day.
What you eat also has a bearing on energy levels. If you're eating a lot of sweets and/or processed foods, you might get a quick burst of energy, but it doesn't take long for it to be burned off. You need to be eating lots of high quality protein, such as lean meats, chicken, fish, low/no fat dairy, eggs, etc. Protein builds muscle, which in turn burns fat. You should also make sure you eat plenty of high quality fiber, such as fresh/frozen veggies, whole grains, etc.
Eliminate soft drinks, since they can make you crave more sweets.