The mixed episodes are the most uncomfortable because you just have no idea which way you're going. I saw that you are on lamictal, if you are just beginning medication, it just takes a while for everything to kick in.
In some cases, a dr can prescribe an antidepressant and /or an antipsychotic to help with the symptoms. If you don't get relief in a few weeks, work with your dr to find something that works for you.