What i do is get 20 in biology for the doctor feat. It is pretty awesome. can use bandage whenever u want (out of combat of course thus less hypo use) and hypo heals for more too. Never tried to craft hypo because i always haad a lot of them in my backpack. As for psi, i just buy them psi boosters and make psi booster whenever i get 5 shrooms, no hurry in that. I also do not have shroomhead and i can manage psi consumption by selling junk and crafts.