is it really possible to win lottery through repeated bets? or most of them have won on their first try and it was beginner's luck?
Yes of course, it's very possible to win a lottery through betting on multiple tickets. Because infact it increases your chances of winning the lottery when you place a multiple tickets compared to if you could have bought just a single ticket, which is why some gamblers do buy more to increases their chances of winning.
and i wonder if the amount of money won is enough to cover all the money you made a bet with if you kept betting multiple times before winning a bet
For those who manage to win a lottery jackpot, I'm pretty much sure that the amount won are always bigger to cover whatever expenses that could have been made in the past while gambling. Because imagine winning $1million, after placing a multiple bet daily of $1 each for 10 times. You will notice that that $1million would have covered even a 20yrs bet been done daily. Hence, when you are lucky to win a lottery jackpot, it's always worth it.