Then the pond will be ready by the spring
where?
Where you put the pond is very important. First, it needs to be on level ground. Secondary , it must tobe somewhere that is quite sunny but also with some shade.
what with?
The pond needs to have a lining so that the water stays in. You can by a flexible pind liner from a garden centre . You also need to put something soft under the lining so it doesn’t tear. You can use old newspaper if you like.