In the first game 4. Qe2 wins at least a pawn.
Nevertheless, you can't always win with a sacrificial attack on the opponent's king. Sometimes you just have to outplay him slowly - especially against stronger players, which don't do many simple tactical mistakes.

Maybe it was my non-distinct avatar that threw him off?
So, right now, I have a really aggressive playing style. I think I'm pretty good at tactics during games, but considering my tactics rating is only a little over 1000, that might not actually be true. Positionally, though, I think I'm pretty bad at during games, but I might be wrong about that as well. The following game is an example of my agressive playing.
As you can see, very agressive on my part. But when I have no opening for an attack, and the game becomes "dull", for lack of a better word, I really don't know what to do, and I end up making errors, such as the following game.
Even when I don't make blunders in "dull" games, I feel like I either can't do anything, and eventually my opponent attacks me and I lose, or we slowly exchange pieces and eventually reach the endgame, and then I lose in the endgame. So how can I improve at my "dull", positional play, and be able to make good positional moves that set me up for a good endgame and don't leave me open to attack?