“D” is your answer. Grains and seeds etc are complex and take longer to digest
Answer:
There aren't many tips that can be given this late (exercise is something you get better at doing over time), but I can say this:
Breath IN through your mouth, and OUT through your nose. This helps keep your oxygen levels higher so you don't run out of energy.
Don't over-exert yourself in the beginning. Humans are 'endurance predators', so it's bad to run as hard and fast as you can in the beginning because you will drain your energy too soon.
