It does sound like you know what you want to teach or at least share of yourself, however it sounds like there's forces working against you with shaming tactics.

I realize that your husband and yourself are on a rough patch, yet, where does he stand on the topic? Is he with you or against you?

Kids, they may not understand right away, but they sure do grow into it.

I never thought I'd see my ex husband as supportive, but the day all three of our sons were baptized together after my renewed faith, he beemed with pride. My gram exposed my mom and uncle but left the decision to them upon turning 12.

ETA: as I reflect upon how my three sons came to be baptized, it was actually at the priest's recommendation/suggestion. I needed my oldest to receive his for communion.
In reflection: good things happen in time. Directions in plans occur all the time. There's a certain intellectualization that can occur when theological studies are allowed, spanning all, not just one.

I chose to receive confirmation as an adult after much soul seeking. I feel more solid in faith for it. I'm glad that path that began as a teen didn't pan out, my adult experience was that rewarding.