I used to be Christian. I had asked Jesus in my heart and everything. My question is, why did I drift away?
Why do you think that anyone here would know the answer to this question? Assuming we even believe that you used to be a Christian and asked Jesus for (whatever it is that you supposedly asked him for), without any context beyond that, without knowing what you really wanted in life, or what kind of relationship you had with Jesus (if any), why would you assume that someone who doesn't even know you might be able to help you with this problem (assuming you actually care)? If you actually CARED about this, then I'd suggest you take it up with a Pastor or some clergy. It seems to me that you've be more likely to get an answer commensurate with whatever type of Christianity you supposedly practiced. But again, without any sort of context or background, it would be impossible for someone to give you a realistic answer to this question.
Why would god let me go away from him if he supposedly wants me for his kingdom? Does he just not care or what? I've been struggling with this for quite some time. I had always beem taught that god was supposed to care about you and keep you from going astray.
But were you ever taught HOW to get God to do that for you? Were you ever taught what actually motivates God to intervene on your behalf? Were you ever taught what pleases God, or what you should be doing for God? Or were you only taught to hope that God helps you to believe in what he wants you to believe in? Because if that's the case, that might be part of the reason why you went astray in the first place. You are apparently a prideful person, so if this is something you truly struggle with, then may I suggest that the first thing you need to do is tone down your level of pride, and perhaps read Psalms 10. It may put you on the right path to some of your answers. It starts off like this:
Psalms 10
1 Why, Lord, do you stand far off?
Why do you hide yourself in times of trouble?