The LD brain can be rewired and a stronger sex drive can be achieved.
@MrVanilla, you say that your lack of sex drive was based on the fact that you never learned, were never exposed to, were raised in an environment that completely excluded any hint or mention of the drive to have sex. This is not uncommon. But this alone does not create a very low sex drive. Because if that was the culprit, than learning about sex and being exposed to sexual triggers would educate you thus awaken your sex drive. So it must be something more.
I submit that the something more is multifaceted but the fix remains the same. Exposure.
The neural pathways that provide the road on which chemicals travel, thus creating feeling and emotion, can be a super highway (built by regular and consistent use) a country lane (built by the occasional pass through) or a weed choked deer path that the untrained eye cannot see for all the other foliage hiding it (built innately but since it was never used it never developed.)
Thus, neural pathways develop because they get used. Use the neural pathways to develop and strength the sex drive.
Expose yourself to sex, to sexual desire, to sexual situations. You are creating mind pictures that your brain can latch on to when you reach for a sexual response. Look at nude pictures, nude art, sex scenes, read dirty stories and even look at porn. The point is you should be exposing yourself to sexually heightened images and situations regularly.
Expose your skin to tactile sensations that feel good. Use the mind pictures while your sense of tactile pleasure is awakened and heightened. In the shower sensually lather your body, feel the wash cloth slowly wend its way around your body. Towel off slowly and with care, paying attention to how it feels on your skin.
Intentionally bring your body to a state of sexual arousal as often as you can manage it. You don't have to orgasm, you just have to bring your body to a state of readiness, although orgasming would be extremely helpful for a woman to increase her drive I don't believe it is that important for a man.
Doing these things DAILY, even several times a day if possible, send signals to the brain on those neural pathways. If you are not experiencing libido killing thoughts or feelings, this will heighten your libido. If you are experiencing libido killing thoughts or feelings, you have additional work to do...in therapy.