irregular period!

Okay so the last period I remember having was around June, and I'm definitely not preggas. I have been stressing so much over the past few months and I'm thinking it's stuffed around my period.
A doctor told me last year that my hormones are out of Wack causing irregular periods and Severe acne. The doctor prescribed me with the pill to help regulate my hormones. I got lazy and forgot to take them some days so I stopped taking them everyday. If I start taking the pill again starting next month should be periods start coming more regularly? 
Will the pill still help regulate my periods if I'm stressed? 
Sorry if this is confusing 😂😂