If you go back to school time ...

Don't know how many times over the years had this idea popped up into my mind: what if I returned school time while retaining all the knowledge, experience and physical strength I have today as a 25 year old?
Well, a lot of things would happen.
First thing I think of is, I'm gonna get the best grade in almost every single exam, at least for middle school stage, for high school, the biology, chemistry subjects are pretty challenging to me to this day.
I would be the absolute center of social life, people are gonna love me because I would be so much cooler and so much more fun to talk to if I had my today's mentality. The problem will no longer be "who likes me, who would talk to me" but "whom do I like and choose to talk to".
The last aspect not the least, I would beat the shit out of the bullies. I'm a revengous person, I remember who did wrong to me, since elementary school, every one of them. If I could travel back in time, I would certainly defend my dignity and re-establish respect by others.

A turning point of the thought:

Once I became a "cool kid" in school, I would certainly only hang out with the second coolest, third coolest ... kids, not the kids that were like myself, my real self, who wasn't good at socializing with people, didn't have a hobby or anything that's noticeable, often couldn't stand up against bully on his own... no, I wouldn't hang out with that kid.

So... even I myself wouldn't give some sympathy towards myself, my "loser" self?

Social life is very "relative", when you are weak, you cry for justice, cry for compassion, worst scenario, cry for pity, when you are strong, you just do things, get things done, you don't have to cry for anything, you don't have to complain behind anybody, you are the boss of yourself, and you may even have strong influence over people around you.
A strong person could sympathize a weaker individual but that's NOT what he's meant to do, his being strong is a gift that's meant to be used for greater purpose, to accomplish more. Sure stronger individuals have obligations to feel sympathy towards weaker people, that's how society works, people help each other, re-allocate power to make human being as a whole greater. But that's just side job of the strongers. When you are weak, if you don't work your own way up to become the strong ones, if you just sit there and complain about the injustice of the world, there's no reason anyone should pity you and help you.

I was a failure in school time, it was on me. I cannot achieve what I expected, it is on me.

On the other hand, of course, there are "strong" individuals who got their power through cheating or unfair advantages, like Donald Trump got a small loan of 1 million dollars from his father, he turned 1 million into billions. Wait, I'm not doing any worse than him, I turned zero dollar into thousands of dollars of salary in a few months, so technically I have the same power level as Donald Trump.