Ezra, you are so right.
As also I often used to think, "one more aveira, I will stop on whichever day" or "better take advantage till marriage, and then it will be ok".
As you probably have realized, a good number and perhaps the majority of those using this forum, including myself, are married.
Contrary to common wisdom (see the Twerski comments on this in the site), in my humble opinion, marriage does not help a bit to those that have had this problem beforehand. This is not a sex issue, but it is about OUR OWN attitude to sex. And incidentally, having this problem, at least in my experience, clouds and confuses the mind at the time of shidduchim.
The main thing is not to feel at all that your worth is diminished because of this problem. Aderraba, just the opposite. This matter has been difficult for the Yiden since Matan Torah. Just look at this RAMBAM (Hilchos Issurei Bi'ah, perek 22, halacha 18):
"
There is nothing in the entire Torah that is more difficult for the majority of people than to separate themselves from sexual misconduct and the arayos. When the Yiden were commanded regarding forbidden sexual relations, they wept and accepted this mitzvah with complaints and moaning as implied by the phrase "Crying among their families", which means "Crying about family matters". Obviously we are in good company
this Y'H was implanted on us SOLELY FOR THE PURPOSE OF OVERCOME IT.
The stronger the Y'H, the greater is your neshama potential to overcome it.
Hatzlacha