Sexless marriage

My husband and I have 17 years age gap... we had good sex the first couple years but now we only have sex once a month! I am in my early 30’s and i want sex all the time lol we already have talked about this issue a lot of times but still no change! He has a lot of stress at work and telling me he is not in the mood and not even thinking about having sex anymore because of his age too... what would i do? I love him and we have kids but i also want my sex... i haven’t tried sex toys but now im curious, should i try it??