What toy did you use?
I personally find as a woman, I need to be very mentally stimulated. Sex is very much a mental thing for me and if I'm sitting thinking "right I need to come now" it won't happen. If I over think things, it just will not happen.
I think maybe you should hand over the toys to your husband and get him to do the work so you can just sit back and think about the sensations. Don't pressure yourself if it still doesn't happen, it takes practice to let your mind enjoy sensations.
I've found myself with previous sexual partners that I've never been able to have a g-spot orgasam and just clitoral. I soon realised it was because I wasn't fully relaxed with them. It wasn't until after I met my husband when I had my first one. But it is very much a mental thing and I don't think I was mentally relaxed with anyone else I just enjoy what was going on.
It can take a while, so just enjoy practicing for now. The mind is an extremely powerful thing, and it can ruin sexual pleasure in a split second. I really think it's something you just need to take your time with. You're not alone though, the majority of women can't orgasam through g-spot stimulation, but I definitely think from my experience that it's something that can be learned.
I hope you manage to find something that works for you, just remember everyone is different and just because a few people experience one thing, it doesn't mean the same will apply to everyone else. You just need to find what works for you :)