I'm going to try to date while I still live with my ex
Why would you start dating when you haven't even moved away from your ex?
I haven't been in a relationship since she broke up with me but its now time.
Dating others while living with an ex might be a bad idea. Depending on how recent the break up was there could be lingering feelings.
I would never do that to my ex.
You should try talking to your ex before you start dating to make sure you're both on  the same page. This way you'll both be aware of what the others intentions are and where the relationship is. This will prevent any hurt feelings down the line.