Who can help me to correct these doubts?

I would like somebody correct me this excerpt:

Here's the best I can do:
 
I think that constant effort has always produces rewards, and contributes to a successful outcome. If we rely on our own work, we can overcome anything that stands as an obstacle. Complaining and procrastinating produce nothing in the end. Only through hard work and effort can we achieve success.

Who can help me to correct these doubts mistake?

I would like somebody correct me this excerpt for me:

I think that a constant effort has as reward, to have success can bring os seccess as a rewatd.. If we rely on our own work, we could overcome anything that we consider. Don´t treat to beg, but to effort oneself.

I would like to convey "Creo que un continuo esfuerzo tiene como recompensa, el éxito. Si confiamos en nuestro trabajo, podemos superar cualquier cosa que nos planteemos. No se trata de pedir, sino de esforzarse"