You can anticipate now that you will regret that decision later.
Oddly, I haven't regretted it yet. If anything, the things I regret most tend to be those things I have been told to do in order to improve my future prospects. (For example, I could have had less misery in my life if I had been allowed to drop out of college.)
Just saw this article on reddit and thought it would be relevant here: Self Control is Contagious, Study Finds
Apparently seeing other people exhibit self control or even just thinking of them tends to increase (or decrease if observing poor self control) one's own self control.