Read over Chases articles on abundance as well as his articles on:
-How to Be Edgy
-How to Be Smooth
-How to Be a Dominant Man
-How to Be a Good Lover
-How to Be a Sexy Man
-How to Be an Alpha Male
This is what I was saying when I don't know which of these categories I fall into, but I'm no longer a "nice guy."
When asking a girl out or making plans with her, since they're saying they're busy or tired, I assume you are asking that day like "Hey so and so, thinking about dinner tonight, you interested?" something along those lines. IF SO, DON'T! Don't ever ask a girl for plans that day, or that night, ask her for her schedule and see what days work best for her, when you ask a girl out that night, she most likely already has plans, or is working, or is tired, and it creates a "NO" ladder so basically, she knows she's said no to you once and it's more likely she will say no again.
Tweaking your nice guy mentality can be done in a number of ways, but I find the best two teachers, as with all things in life, are success and failure. Play the nice guy role and it fails so you start to systematically eliminate some of the "nice guy" traits you have to experiment with getting results, and when the results start to pile in more and more, you eventually break the mentality itself and without knowing it have become a dominant man, edgy, smooth, and sexy. However, if you know the qualities of being an "edgy, smooth, dominant man, good lover, sexy man, and alpha male" then you can start to implement those qualities, and start turning yourself into one of or many of those men.
Good luck, and if you have any more questions, feel free to post,
Richard =D