To add on, my foreskin has its opening on one side, much like the picture for phimosis in wikipedia.
http://en.wikipedia.org/wiki/Phimosis
Will this affect any stretching or sex? Is there anything I can do about this?
Since I'm barely 14, I never thought that this stuff was abnormal; found out about it while doing some shady stuff late one night

Do be careful what you read.
While the Wikipedia article is
reasonably conservative (i.e., does not blatantly recommend circumcision), it is anything but "balanced" or strictly accurate as a consequence of systematic "white-anting" by circumcision enthusiasts (as can be discerned with some persistence from its history record) - for example the rather perverse "male-initiation" site is cited, but the citation for this site is persistently removed.
If you are not aware of it, you can easily be influenced by the subtle machinations of these circumcision enthusiasts.
I would not be concerned at all about a degree of asymmetry of your foreskin. Presupposing your answer to Jim's question, I imagine that when less than fully erect, your "acroposthion" - the part of the foreskin extending beyond the glans - is normally aligned allowing you to pee with reasonable convenience and accuracy and only pulls to the side when you are fully erect. It certainly will not affect the efficacy of stretching either the opening or your frænulum.
Now as to what to
do at this point, you need to stretch the opening
and the frænulum. What Jim has illustrated is the basics of this, but I admonish you - as always - to do a
lot of reading through
this discussion board (and be
very cautious about taking notice of other information sources including Wikipedia, albeit it has some good illustrations) to get the full picture of the process. You will most certainly need to put more work into stretching the frænulum - carefully but persistently - as it will actually need to be stretched to a greater
degree (that is, it has to grow much more in proportion or "percentage-wise",) than the opening of your foreskin.
There are some ambit questions that I tend to ask regarding the "discovery" of phimosis. The first is as to exactly how you discovered it - what was it you viewed on that "shady stuff" that caused you to realise that you were not quite "normal"? Significantly, what factors about your upbringing prevented you from learning about the full function of the penis and foreskin - what experiences (of comparison) did you - or did you not - have with other boys?
And the Wikipedia article mentions - quite reasonably at this point - a connection with "masturbation practices that differed from the usual" - would you put yourself in this category? What has your practice been to date and incidentally, how did you originally learn it?
I mention this as part of the "Don't panic" theme. It is
vitally important that you do not conclude from the plethora of
mis-information available, that there is something "wrong" with you, that you have
done anything wrong, that you are "abnormal" or particularly that this problem need in any way restrict your (current or) future sexual activity.
While we clearly would not encourage it in your situation, the fact is that your penis as it stands, would be
entirely serviceable for sexual intercourse. In fact, that your foreskin will not retract to any significant degree
whilst erect means that it is protected from being retracted - and causing pain - with any degree of force that would be a part of
enjoyable sexual practice. What is the case is that
as you proceed with stretching and progress to the point where your foreskin
can retract whilst erect but with difficulty or discomfort, it may under
those conditions be susceptible to excessively vigorous sexual practices, meaning that you would have to take extra
care at least
until you have completed the full stretching process.
And incidentally, what we advise in terms of stretching is clearly not what most articles describe; presumably your stretching
so far has been simple retraction?