I took a break for about a year and came back and at the time I had 65k power. Month and a half later I now have almost 88k power. Only have 2 outfits (Samuri and cat one you get from grocery store) and I haven't spent coupons on events yet. Still saving for Jonin Minato. I wouldn't expect you to be competitive for a few months, but it will start to slow down and you will be able to catch up in power. Gonna take some time though.