My physical goals for Physical Education

I am definitely not the fastest person, nor the person with the most stamina, but by the end of June I want to be able to do,

20 Push Ups in 60 Seconds
40 Sit Ups in 60 Seconds
1:30 Plank
and able to run a kilometer without resting.

a special goal I have is to be able to hit a home run in Baseball which I have accomplished, and post a shutout if hockey becomes available to us.

to be able to complete these goals, I will constantly walk until I can jog at a steady pace without heavy breathing, I will do small amounts of pushups and situps in a small elapsed amount of time, then push the time frame longer but the pace just as fast, and then I will get my endurance up by just constantly trying to plank longer, and longer each time until i match the objective I foresee myself reaching.

Thoughts on PE

I am not an overly physical person, I don't normally bike to class, but I am warm to team sports like hockey and baseball. I don't mind walking and physical exertion.