Intelligence is found as malleable than fixed.
Even better, psychologist Aronson has found out if people learned about IQ's malleability, they will become smarter than the ones without learning about this message.
Several other researchers used this and applied to a research with seventh-grade students, and the results prove for itself:
… Indeed, students who were members of vulnerable groups (e.g., those who previously thought that intelligence cannot change, those who had low prior mathematics achievement, and female students) had higher mathematics grades following the intelligence-is-malleable intervention, while the grades of similar students in the control group declined. In fact, girls who received the intervention matched and even slightly exceeded the boys in math grades, whereas girls in the control group performed well below the boys.
These findings are especially important because the actual instruction time for the intervention totaled just three hours. Therefore, this is a very cost-effective method for improving students' academic motivation and achievement.
This article may already help you to the road on becoming smarter.
Believing You Can Get Smarter Makes You Smarter – [Psychology Matters]