To help in understanding how far away we are from Andromeda.... you can fit about ~23 Milky Ways, or ~11 Andromedas, from end-to-end in between the 2 galaxies currently. The diameter of the Milky Way id around 105,700 ly, while Andromeda is 220,000 ly in diameter.

Whiles its an unimaginable distance on a humans scale, they are basically right next to each other on a Universal scale.