When to unfollow

So I've been trying to grow my main account organically over the last couple months (although it has been slow due to inconsistent posting and other issues etc). I want to know how to optimize my unfollowing so I can keep my followings low and still retain much of my audience. IGlookultra Followers:1469 Following:1505

I unfollow around 300-600 near the end of the day. Around 100-115 unfollows an hour for about 4 hours.

start unfollowing right now man, it looks REALLY suspicious when someone has more followings than followers

How to avoid re-following people that you have already followed/unfollowed before?