I tried to enter Minecraft, but i couldn't. Then i realized that i had changed my username today and i log out from the launcher and tried to log back on. Then it said that my password is incorrect. I went to my Mojang Account and i log out and tried to log in back again, but my password was incorrect. I reset my password to another one and then i could enter. I tried to log in on the Minecraft Launcher, but it didn't work. Then again i went onto my Mojang Account, log out and i couldn't enter because my password was incorrect. I made sure it was written correctly but no success. I don't know if I was hacked or something but help please.

UPDATE: It worked now, i just pressed log in and boom it worked.