I used to love track and field in high school. It's a sport that includes running, jumping, and even throwing!
It seems fun but so damn tiring!
They definitely are. The jumping and throwing events can be won by the athlete who reaches the highest distance or height. 
That's cool, I don't think I'd do that good haha.
It sounds intense, right?! There's also, of course, the foot racing events, which include sprinting, middle and long distance running, race walking and hurdling. They're won by those with the fastest time.
Without a doubt, I've only played stuff like soccer and that sounds way worse.
Track and field is in the same of category of sports as road running, cross country, running, and race walking, which are under the umbrella sports
They seem a lot different so that's surprising.
Cross country running
Cross country running is a sport in which teams and individuals run a race on open-air courses over natural terrain such as dirt or grass. Sometimes the runners are referred to as "harriers" (dogs). The course, typically long, may include surfaces of grass, and earth, pass through woodlands and open country, and include hills, flat ground and sometimes gravel road. It is both an individual and a team sport; runners are judged on individual times and teams by a points
Sport of athletics
Athletics is a collection of sporting events that involve competitive running, jumping, throwing, and walking. The most common types of athletics competitions are track and field, road running, cross country running, and race walking.
The results of racing events are decided by finishing position (or time, where measured), while the jumps and throws are won by the athlete that achieves the highest or furthest measurement from a series of attempts. The simplicity of the competitions, and the lack of a need