Try to relieve yourself from stress and or anxiety. Studies have shown that when stress or anxiety levels are high during sexual intercourse, males are likely to ejaculate more quickly.
Stress and anxiety hormones play a huge role in ejaculation. Why do you think popping anti-depressant pills as a temporary fix for premature ejaculation has been so popular this past decade? The reason is because anti-depressants make you feel happy, feel at ease, and feel free from worries.
If you want to avoid popping pills, try to relieve stress in your life naturally. I suggest you begin to work out, exercise, and try yoga. These activities help to build a more relaxed self. With anxiety and stress levels out of the picture, you may now last longer during sex.