I have a 15Kg Bruce and 60' of chain. And no windlass. And a bad back.
I'll get a windlass one of these days, but as marianclaire says, patience is the answer. Take your time. Let the motion of the boat help break the anchor free. If I am in calm seas and by myself, I just slowly pull, and wait for the boat to come up on the anchor.
Patience is also quite useful when setting the anchor as well.
Depending on conditions, you may find you don't need a windlass. Try patience first.
1987 CS 36 Merlin "Kyrie"
"They drove a dump truck full of money up to my house. I'm not made of stone!" -Krusty the Clown