How to know if my prayers are genuine?

It's been 2-3 months since i started taking my religion more seriously, and I am really happy. Though because of this i've been thinking, how do i know if my prayers are genuine since we have the same format and script, it's hard to know if i'm doing it for Allah or just because, i do read the quran, make dua, pray all 5 prayers and joined fasting but what if it's just actions if you get what i mean. I'd like to believe my prayers are genuine but i still doubt myself because i used to be a disbeliever.