Just need to vent, sex life issue

So my husband has rejected me a lot sexually and is generally uninterested in sex when I initiate. I've learned to stop initiating because of this, I get met with frustration and never excitement.

We learned recently that he has lower testosterone, 354. The doctor refused to give him anything to help boost it because he said his body would stop producing testosterone on its own. Instead he gave him a pill for narcolepsy but he can't take that because it could affect his driving, which he drives for his job.

I'm just realizing that this will be a struggle for the rest of my life, I am religious and believe in being married for eternity as long as there's no abuse or major problems, and we do have a child together, we are good friends too. I just feel so sad because I don't know how it feels to be desired and I know he'll never truly have that animalistic draw to want to have sex with me. I just needed to vent, I don't really know what to do.