This seems to be a team effort, so here's the answer to your questions 3, 4, and 5:
That previous note I was taking about that line, does it mean I hold it down until I get those F A notes and kind of switch
The line that extends across each series of notes is called a slur. It indicates that those notes form a phrase, and should be played so that they are connected together. You do not need to sustain every note you play until the end of the slur; it simply indicates a melodic line.
This is different from a tie, which connects two or more of the same note written in series, simply by extending the rhythmic duration. This is being done to connect the chord on beat 4 of bar 1 so that its duration extends through bar 2.
(Note that my bar numbers are counting from the first full bar. The eighth-note (or half-beat) pickup note at the very beginning is called the "pickup to bar 1").
What the deal with that rest note with the 2 dots on top of those 2 notes how does that effect them?
The double-dotted half rest (which has a duration of three and a half beats) at the top of bar 2 is kind of a weird editorial decision, but it indicates a second voice, so that the rhythmic durations in that bar do not collide. It does not affect the F#-A chord. If there was no rest there, then the whole-note chord would have to be an eighth-note shorter to make room for the F# eighth-note pickup to bar 3. The way it's written, that bar has a bottom voice that plays the F#-A chord for four beats, and a top voice that rests until playing in the last eighth-note in the bar. Do note, however, that some editors would have considered that to be obvious, and left out the double-dotted half rest.
On the end there is a whole note yet there's a half (correct me if I'm wrong cause wiki says its a eighth note but it seems to not sound right) why is that there?
We kind of just answered this with the last question, but it bears repeating that the names of note durations (half, quarter, eighth) are relative to a 4/4 bar (the C at the beginning of the piece is shorthand for 4/4 time). It's a bit counter-intuitive when you get into other time signatures, but that's just the way it is. A note with one flag on the stem lasts for half a beat, but it is called an eighth-note, because it takes up one-eighth of the duration of a bar of 4/4 time. So, assuming we're still talking about bar 2 or 4, the double-dotted half rest above the whole note indicates that there is a second voice above the whole note, thus none of the rhythm of that voice will conflict with the whole-note chord below it.