Insta Journey to visualize my daily gains

Here's my jouey. Each account is around 2-3 weeks old ruing on FL w/ private proxies

Each account likes around 400-800 pics/day
Daily limit is set to 800 but it never reaches that
Global delay is 20 - 60 seconds
Each account posts 5-10 pics a day, high quality and 100% unique as I've made them from scratch (bulk created quotes pictures)
Mainly focusing on the follow/unfollow method. (I don't follow and unfollow at the same day)
I follow users with big followers in the same niche.

So far I've got 16 accounts but just found out that one is blocked from following.

It's a pretty slow progress I admit. I was expecting to be atleast with 3-5k followers each account and with a 30-40% followback rate.
I only have 2 accounts that are just over 1k and the rest are hovering at around 60-800 (way below from what I expected)
Also as you see below, I'm only getting around 10-20% followback rate, which is pretty low.

So over the next few days or even weeks, I will be experimenting with different follow techniques and stick with it if i see significant improvement and if not, it's back to adjusting
The table below shows how much followers gained from a day and how much I'm following. Posts with a "u" shows that it was an unfollow day

Any feedback or tips are much welcomed!