I'm only 24 and I have no sexual desire for my husband or at all.. what can i do?

There is a lot you can do, but first...you need to learn what may be the cause(s) to your low-libido. It can be many things: hormone imbalance, excessive stress, relationship difficulties.

You can educate yourself on possible causes (skip down to the last articles, as there are more age-appropriate resources for you that do not include menopause). Specifically, read the articles related to emotional stress, having sex even if you are not in the mood, doctor advocacy sheet and more: https://www.empowher.com/low-libido

Let us know what you discover from these articles that relates to you, and we can provide more specific/tailored information.