[Mindy, the confused one[_2_]]

Are you able to separate the tables vertically using the enter key then treat
them as 3 distinct tables or are you trying to make them all into 1 table
with aligned columns?

If it's not a large table, you may have the best luck with creating a new
table with the column widths you want, then highlight (I use double and
triple clicks for speed) and drag/drop text into the columns in the new table
that are most appropriate.