I don't know how much to claim for a part time position and not lose my edd benefit?

I was recently laid off and got an opportunity to get a part time position at a clinic that I'd like to work for, but I don't want to lose my benefits. I don't know how much to ask for. Can someone help me please!!!!! Serious answers only!!!!!!! I'm taking on 15-20 hours a week. I was thinking of asking for the initiated price of 13.50 per hour, but, if I do that, I would lose half of my benefits. I don't want that. So, please help me. I get about 900-1200 a month now for being laid off, if with this position I'd still get the same amount whether taking the position or not. I want to also go to school and eat up the edd benefit because I was unlawfully laid off due to some stupid circumstances. Please help!!!!!!!!