Since you ask that everyone plays each other the same number of times, then I think the only choice that works is to play a triple round-robin (RR), as there will not be enough time slots to play a quadruple RR. Each RR has 45 games, so the triple schedule will involve 135 games, with a maximum of 4 per week, which could be played in 33 weeks of 4 games, with one short week of 3 games. I think I could make a schedule like this if that sounds OK to you.