Excess weight acts as insulation to your body, meaning you warm up quicker and stay warmer for longer.
Volunteering is an excellent option for anyone on a gap year. Although it can be tempting to jump straight into the bottom bunk bed of a party hostel in Thailand, consider first what is actually serving you best.
Self esteem is a tricky thing to deal with. It's so easy to compare yourself to others or dwell on your flaws and end up dragging yourself into a depression.