AH books/novels with time travel to past to redo his/her life and make things better

[Nash 07]

i need some AH books or novels where mc/protagonist travels back in time/sends his mind or spirit back in time to redo his life or basically sart over. i have read this start over category in other sites but i am totally new here. I dont know where to find such books. i have only read 'Masqurede how hard this can be?'
p.s. i prefer male protagonist ( i am not being sexist but i can relate to male mc better ) thanks!

 

[Polish Eagle]

Turtledove had two short stories on that premise--"Forty counting down" and "Twenty-One counting up." They are two perspectives on the same event--a forty-year-old man wants to go back in time and prevent the breakup that he views as de-railing his life.