Wow, you sound like a bit of an idiot tbh. Are you going to keep using the morning after pill as your main form of contraception?
Levonelle can mess up your cycle, for months, but it will settle down eventually. That little pill contains a lot of hormones which you shouldn't take too much of in a small space of time, it's not 'good' for your body. So long as you don't take another pill, it's unlikely you've done yourself any damage.
Use a sodding condom next time.