That sounds about right for a fish in cycle. For a fish in cycle I would suggest keeping ammonia at or below .25 and nitrites at or below .5. When you go through the nitrite spike you may have to do closer to 50% water changes. And don't give up if it seems like the nitrites are NEVER gonna go down. They will.
What brand of good bacteria are you using? The only thing I've ever heard of people on this forum saying really works is bio-spira. I've never used it though. So you may be unnecessarily be spending money and time on using those vials when just your water changes would be fine.