Hand 2. Preflop this is a pretty horrible hand especially with your stack. It is playable from late position but IMO it is raise or fold preflop. (usually fold).
There isnt alot you can do with such a short stack other than camp for good hands and play them very aggressivly.

Since you say you are inexperienced i will make a suggestion as to what i would do if I were you.

1) Move down to $5 or $10 buyin games where you can afford a full buyin. Read Bankroll managment 101

2) Read Preflop starting strategy and apply it to your game. Do not play ANY hands outside of this starting strategy.

3) play a few hours of 1 table no limit. Stay focused.

4) Read the Hand histories section of the forums. Look mostly at hands from $5 and $10 buyin games and try and understand what people are saying and apply it to your game. Post hand histories from your own games and think hard about why people are saying what they are saying. It isnt enough to just say oh... Fnord would have folded his pair of Jacks there so i should. You need to know WHY Fnord would have folded his pair of jacks so you can apply it to other situations.

5) After a few weeks you might think about starting to add tables. After a couple of months you might think about playing KT.

KT is a "trouble hand". It looks very pretty and can win you alot of fairly small pots when you are the only person who flops a pair of Kings. The problem is when you run into KJ, KQ, or AK and you lose alot of chips. I strongly suggest you stop playing hands like this until you are good enough postflop to figure out whenh you are behind and fold your pair of kings.