u/EmGrader

Last year I got my first credit card so I could start building my credit. I always pay the balance soon after I spend anything. Recently I checked and my score is lower than it was when I started somehow. The cause is it went down 32 points on April 6th. But I dont understand from the credit report what caused this. Was it the length of credit history getting longer??? Is the length of credit history changing uncontrollable? I haven't recently closed or opened any new accounts or cards. Was this drop inevitable or something I could have prevented?