What to do with this hill

I am looking for advice on what to do with this hill. We moved in about a year ago and the weeds have finally taken over. I believe the previous owner was just having fresh mulch thrown on it every year. I considered throwing more weed barrier down and throwing mulch on it as a temporary solution. I'm pretty sure the mulch will just slide down it over time, though. I suppose I could create some sort of edging at the bottom but not really sure what to do with the one side. I considered getting a quote from landscapers but that's not exactly in the budget at the moment. Any advise is greatly appreciated!