i cloud subscription
I currently have i-cloud storage and a apple tv subscription, my husband has just signed up to the apple one where we will have everything and can use our family sharing. Do I need to cancel my subscriptions
For information about sharing an iCloud storage plan, see the following: Share iCloud+ with your family - Apple Support
See the following from that support article for information about switching:
When you share iCloud+, any family members using the free 5GB plan are added to your family plan automatically.
If a family member is already paying for their own iCloud+ plan, they can choose to switch to your plan or keep their own and still remain part of the family. When they switch to the shared family plan, they get a refund for the remainder of their personal plan. They can't keep their current plan and use the shared family plan at the same time.