&lt;p&gt;Don&#039;t do drugs, stop hating your thighs, buy shares in Google: 10 celebrities write letters to their 16-year-old selves with some choice words of advice&lt;/p&gt;&lt;div class=&quot;author&quot;&gt;&lt;a href=&quot;http://www.guardian.co.uk/profile/chrisfenn&quot;&gt;Chris Fenn&lt;/a&gt;&lt;/div&gt;&lt;br/&gt;&lt;p style=&quot;clear:both&quot; /&gt;