Modern Worker Smart MC

Office setting. MC able to raise to become a CEO in his company but it came with price. He sacrifice his friends and family to reach to the top only to realise he's alone.
MC went back in time and now swear he will not make the same mistake.
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Office politics
Smart office worker MC
Probability romance in future (MC regret ignoring his wife)

Due to explosion of A.I Baruda that can help in diagnosis disease, now the chip for the AI is inside the MC. With the help of the AI, can MC become the best doctor in the world?
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Hospital/medical setting
Powerful Cheat
Potential romance

Due to some reason, MC unable to continue his dream as pro wrestler and end up working in construction site. What happen when MC reborn to the time he started as pro wrestler?
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Pro wrestler setting
friendship
smart MC