Thank you everyone, for your advice. I had an electrician come in and take a look at it. He switched out my 30A for a 20A ( I have no spares ) and recommended that in the near future, I need an additional panel, as they should be on separate breakers.
He did tell me that the #10 AWG to the junctions, and #12 from the junctions was not the normal practice, but was not dangerous, and in some electricians points of view, maybe even safer.
Either way, I appreciate everyone's help. Thank you