How much are you paying for supervision?

I’m the only social worker at my job so they don’t offer supervision. But I need supervision to practice since I’m not independently licensed. I’ve been looking around and most LICSWs in my area charge $150-$300 for an hour of supervision per week. The least expensive I’ve found was $100 per hour. Which seems reasonable I guess, but looking at my budget I have no idea how anyone could swing that on a social workers salary. I’m thinking of asking to do supervision just once per month, but I don’t know if that would cover me to be working under supervision or if it has to be weekly.