Firefighter career

[UnderseaLcpl]

I have some advice for your running, chin-ups, and push-ups.

To improve your running rapidly, try singing whilst running if you are suitably alone, or else hold your breath for short periods of time during your runs. It helps to build your lung capacity, which is key in distance running.
For push-ups, wear a heavy backpack or elevate your legs. Also, use 4-count push-ups; down-up-down-up, 1. It will be extremely taxing for a few days, but it will make regular push-ups seem like child's play.
I like to make a habit of doing them during TV commercials.

Chin-up workouts in my preferred fashion are a bit harder to do, and require some self-discipline. Put a chin-up bar in the doorway to your room and do as many as you can (or a flexed-arm hang for as long as you can) every time you go through the doorway. In addition to boosting your strength, it also boosts your memory. I can assure you that after a few days of this regimen, you'll never forget your cellphone on the nightstand again