Worries about linking and merging

[(PSN)Wulfy-The-Wulf]

So I have a psn account I want as my primary and 2 other accounts I made as warframe is awesome and wanted to play everywhere!

I'm worried I'll lose my primary progression if I merge my 2 other accounts onto the primary? Also I heard you need a pc account? Made one and I'm worried if I link my primary wrong I'll lose everything?

Will my story progression become the merged accounts or my primary? 

 

save my dumb ass!

Its all so frustrating 😫  someone dumb it down for my woman brain 🧠 

[(PSN)jason-helldz13]

As far as I know 

When you link them it shows a header that the accounts are either merge available or just link available and below it there is another header where you chose which account is the primary it also shows mastery rank and days played and after that it's like 3 confirmations so it's really hard to mess up