Access to the game

Hello!
I'm not sure how to write this or if it's a bug but i bought my game from Windows Store! I really wanted the game from few years and finally managed to buy it but somehow i see the version of the game is only on version 1.9 and i can't connect to servers i used to play on cracked version! I need help about that!
I searched a bit about that and now i saw there is Minecraft(Java edition) on which it's version 1.13 and i was wondering what is the difference and if i can switch because i really don't want to buy the game again ... !
Thanks in advice