What i do wrong?

Helo, mates!

So, i have one isntagram account in pets niche. My account stats: Followers -6400, Following - 6500. But, i`m runing this account about 2 months. I don`t know why i`m getting my followers so slowly... I use FollowLiker, but only a follow/unfollow function. Could you give an advice, how can i get maximum from FollowLiker? Or any other tips?

Thanks!