IMHO, Phenibut on it’s own does a damn good job of fulfilling all of those roles without having to add too much to it. Especially in the early days when it’s a novel substance working it’s magic in your body.
I remember being so calm, and confident with excellent verbal fluency while at work the first few weeks after being introduced to it! now tolerance does develop quickly so I could see why you might want to add something else to bring it all that back.
If you wanted to keep it subtle and easy, you could always do some kratom. Like three or four grams to start. That’d be a great, easy to obtain choice and you’d be confident, relaxed, and euphoric from it.
Just don’t do the two too close together because Phen tends to block kratom‘s warm glow if you take it right before. Do your Phen dose as usual and an hour or two later toss the kratom in.
If you want something a little more powerful you could do a small dose of Dexedrine - 10mgs or so. I’m a long time and daily amphetamine user so I’m also familiar with this combo and Phenibut works wonders with D-amph. It’ll give you that lift and mood and über confidence, while the Phen takes any edge off.
If you add anything more powerful than that it’ll just overtake the Phenibit.
Consider one of those options and stay safe, friend.