The most important thing that you have to know is that your brain can be trained and become smarter. When you for example are trying to solve a math problem and you are feeling like it’s to difficult you should first of all try to challenge yourself and find a new way to solve the problem. It’s always good to have a mindset that you are good enough and that you can do it but just not yet.If it does not work with trying by yourself you can also ask someone else for help. Not to give you the answer right away but to lead you on the right patch.
When you are following these tips your brain will begin to evolve. The neurons in your brain will start to make connections with eachother and this way you will become smarter. Everytime you learn something new your brain is developing.
It’s just like a muscle in your body. When you train the muscle it grows and becomes stronger. It works just the same way with your brain. When you are practicing and challenging yourself enough the brain will develop and you will become smarter.
I also think that you should not compare yourself with others. Everyone is not that same person and everyone’s brain does not work the same way. Always think you are the best version of yo you and try to compete with yourself and not with others.
The most important thing to remember is to love challenging yourself because hard work will eventually pay off.