Breakthrough bleeding

So I started this pill back in October and i had break through bleeding so i would have my period then a break then another week of bleeding then a break bc my period came back. This happened in October and November but December it didn’t happen so i thought I finally had a normal cycle again. Then January i had my period then a week break then I came back on my period AGAIN. I thought my breakthrough bleeding was over and i just started crying because I don’t want to deal with basically having two periods every month and heavier than my normal period too. What is the normal amount of time to wait for my periods to go back to normal like bleeding once a month :/.