Why spanish is a difficult language?

First, I am grateful for all those who have left your commentary in my profile, I could not answer them. sorry. 
I know that many of you study Spanish in your schools, institutes or other, and I can guess that to several it they can be going badly...

The problem of the Spanish, it is said by someone who has it to the language as native language, there is that get confused  very much the time of the verbs.

For example: in English) its three basic times: past, present and future.
In spanish, for the past its five times, for the present too, etc. With six grammatical different persons, which is a Barbarian mess.
The truth, if I was foreign, would not know how to learn this language...

It's that true? All the person of the world!! What do you think?

Thanks to everyone, Tomás.