Hi Yeft,
Frist of all going forward please use the subject line to give a one line summary what the post is about rather than saying Hello. Just a friendly suggestion.
To answer your question I can think of 2 solutions.
1- you can use a helper column. by Column 2 if you mean Column B you can use this formula on an empty column: =TODAY()-B1. This will give you the day difference between "today" and the inputted date. then you can use filter.
OR
2- you can use a conditional formatting. Highlight the column (assuming B) then go to conditional formatting>New Rule> Use formula... > Type "=Today()-B1>30" on the box and select what kind of formatting you like it to show if it is more than 30 days by clicking on the Format button.
I hope these suggestions help.