Database formatting

For some reason, when I add columns, automatically the database is adding them to the second column from the left (rather than at the right hand side of the database) - I have to drag them to the right every time I create a new column - how do I stop this from happening? (initially, it was working fine, but then suddenly started to do this).

It happens if you have dragged any column in the first place it will add after the last added