For every challenge that we face in this life, always know that we are capable of overcoming it. Allah SWT has promised in the Quran that HE will not test us beyond our abilities. Therefore, know that deep within our souls we have that strength. Take every challenge as an opportunity to grow.
We should always remember that no one is perfect in this world; therefore, we should never talk negatively about someone behind their back. When we know of someone who may know lesser than us, always know that Allah SWT may provide them with the best knowledge one day. When we know of someone who may know more than us, we should take the initiative to learn from them instead of being jealous.