Gearing is a very personal thing, influenced as much by type of riding as leg strength. I'm running a 67" gear (46x18) and I've worked hard over the past couple of years to increase my cadence (both on the bike and at spin classes) and am quite happy for long spells around 100 rpm. It does need to be worked at though. For a variety of reasons I hadn't ridden fixed since July until this week. I fully expected to forget to "pedal, pedal, pedal" but interestingly, it was natural right from the off, even after six weeks either not riding, or using gears. Bit like riding a bike really [see what I did there?]. So, my advise to the OP is to stick with it.