You lack wisdom and experience, foolishly believing what others speak as truth. You suffer disadvantage on all Insight checks to see through deceptions. As well as disadvantage on History checks. 

FLAW. This is a flaw feat. At your DM's discretion, you may take this feat at level 1. If you do, you may also gain a feat, or increase two of ability scores by +1 (or one by +2).