How can my husband and I increase our sex drives?! He's 25 and I'm 24!?

The only thing "wrong" with you is that you're not actively prioritizing your life. You both miss the sex? Then, prioritize it higher. For example, what do you do as soon as you both arrive home? If it's fix dinner, stop doing it that way. Have sex first, and THEN fix dinner. You can restore your sex life if only you consciously choose to prioritize it higher.