i have bad grades and no matter what i try to change that it always has the same outcome, no matter what i do or try my brother is always a massive step ahead of me, i have been so behind that i now see my brother as a living reminder of my failures when i can't do something my brother does it like it's nothing from lifting something heavy, doing work, to doing sports i feel like no matter what i do and try i'm always nothing comared to my brother, and i feel like a absalute failure and that i'm always in the background.
You shouldn’t compare yourself to others who are superior to you. Your brother has his own path to take and that’s his life, only you can make your own to be a better person than you think you are, focus on the things your good at and put that effort into things you aren’t. Even the smallest changes are great, looking at the small things you’ve done in life and looking back at it can boost your morale. The grade system is not a good way to judge your self esteem so look at the good parts that can make you smile. Remember, you are the protagonist in at least 1 person life. You are the main character in your own perspective.