Ok for this achievement all you have to do is earn all 36 stars from the trials. there are a total of six stars from each of main trials.
The best advice i can give is to hack all vending machines, turrets, and most importantly the health machines. they will save you in a heartbeat. Do this before you adopt the little sister.
Once everything is hacked, you can set traps around the body to be harvested. I like trap rivets and cyclone traps, when availble. If you can always have a cyclone trap on your lil sister, this will ensure no one gets close and breaks your adam chain. Another good one is your mini turret. I didnt even realize i had it till about half way thru. Its alternate ammo for hack tool, down on d-pad. Fire and hypnotize plasmids work well too.
When using vending machines, alternate between health/eve and ammo. Also you need to keep your adam chain at 4x to get the most possible adam. Your chain increases the longer your lil sister is uninterupted.( not bein attacked by splicers )
And finally you do not need an A rank to earn earn all the stars in a particular trial, I was getting all the stars for B rank on a few.
Msg me if I left anything out.