Why does G‑d challenge us so, knowing full well that it will only hinder us from being our best selves, and make us make fall and err? Doesn't G‑d want us to succeed?
Of course he does. But without that negative impulse, all the good we'd do would be hollow. It wouldn't be sincere and it wouldn't be a true accomplishment, for that'd be all that we know how to do.
By giving us the option and temptation to err and even do things that are outright wrong, the good that we do accomplish takes on a far more precious, genuine character.
Our job vis a vis the evil inclination is therfore, for the most part, to try our best to ignore it.
G‑d also created Satan, who is a far more serious problem. Satan is not an internal voice urging us to do the wrong things. Satan is the prosecuting angel in heaven. He points out all our sins and misdoing, the times we err and the times we fall.
He is much harder to ignore than the evil inclination, for he speaks the truth. While the evil inclination can be internally brushed aside, it's quite hard to brush off an angel who is pointing out all the errors we've made - and he isn't lying about them.
When we're faced with a desire to do what's wrong, we can overcome that desire and do what's right nonetheless. But when we're faced with our own reflection, with the mistakes and misdoing that we committed - when we're faced with Satan's prosecution - that can really drag us down.
