The jog/running is also a good idea to increase your stamina, but don't start it too drastically. Also try to have at least 8-9 hours of sleep everyday will greatly help!
Hope this helps!
5 hour energy. And the best way is to get more stamina by yourself! I know you just got a job and I realize this is hard but you should run or jog whenever you can!
DONT MASTERBATE AND EAT A BANANA AND START WORKING OUT
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I'm startin my new job on the oil rig and I'm goon to be workin 12 hours a day but I don't have good stamina and no energy, what's a good pill or liquid that can make me last the day and give me a lot more energy and stamina?