Don't compare yourself to faster friends. We all possess different levels of ability and training. Focus on being the best you, you can be.
God may have created man before woman, but there is always a rough draft before the masterpiece.
#Training is when you follow a schedule, each day with a purpose. If the weather is bad, you still run. If busy, you find time. You train.
Too hot to run? It's never too hot to run. You simply need to learn how to: 1) slow down; 2) drink frequently; 3) cut mileage; 4) survive.