3: I play a melee character and I managed to get through the caves without getting too beaten up, though it helped to have a grenade ready. The thing is, this game is not supposed to be played with just one weapon skill, you need at least two to get through even the easiest battles, because ammo is scarce and weapons bust up quickly, it's a good idea to have a second choice of weaponry. I don't blame you, I did the same mistake at first but I learned a few characters in that having more than one specialization will make the game a whole lot more managable.
8: You can create your own hypos, though in the beginning it's almost inevitable to make your way through the first caves without going back for free heals and trading scavanges items for medical supplies unless you've played the game before and know how to best get through the cave with the least dmg taken possible.
9: Psionics are not supposed to be like spells, they are more of a utility, like grenades. You can't play a grenade thrower efficiently, why should psionics be any different? Utilize psionics, don't depend on them.
10: You can buy hacking devices in SGS, from Ezrra (the blind dude that teaches you psionics). And they are pretty cheap.
11: While I disagree that all cooldowns are evil (it's to prevent spamming, creating balance), I do think that the cooldown for grenades are a bit too long, 3 turns is way too long, decreasing it to even 2 turns would be appreciated, but then, it's all about balance, mixing with cooldowns can have unexpected effects on balance.
13: The degrading was even faster before, it was nerfed a few updates ago, I think it's just fine, crafting or buying repair kits gets feasible pretty early into the game. You can also equip scavanged equipment in case your stuff is broken, unless you blow people up, which makes their equipment lose almost all its durability.
And welcome to the forums!
Oh, talking about crafting hypos, is there a way to create bandages yet Styg? or will we be unabled to craft bandages?