Hi wallie and welcome to the forum.
Bacon is relatively awkward to slice. (As you may have discovered, even by hand.)
Chilling it to almost frozen stiffens it, making slicing a good bit easier.
If you use the forum's Search facility, you'll see that the topic crops up quite frequently.
I think most folk get a 'plastic' slicer first (I'm happy with my Lidl one), and some folk then get serious, (or lucky), and get a pro-type thing like a Berkel (good word to search for!)