Dysfunctional trackpad in brand new 2020 Mac Air

I just bought a new laptop. Although the trackpad worked fine for a few days, it is now doing a double click every time I do a single click. This means, for example, that I can't move any files around my desktop into folders or highlight text. When I try to pick up a file to move to somewhere else, you can hear the trackpad doing 2 clicks instead of one and it previews or opens the file instead of selecting it to be moved. Help?