Patience
is key
1. You did this for 2 days, tell me this sir, other then steroids or other external stimuli, do you know of anything involving changing and shaping your body through work, occurring in the span of a mere few days?
Stretching the foreskin, even done properly, can take time in the form of weeks even, your foreskin may be much tighter then others who have phimosis, considering that you are 19, this may be more severe then lets say a 10 year old. Not to frighten you, but keep in mind that not every person with phimosis can cure themselves with the self applied stretching techniques. Some will have to go to the doctor for creams, or surgery.
2. I forgot what it was called -_- I'll let you know as soon as I find out what the connective tissue is named.
3. Yes, this is expected considering that you have foreskin, I don't think you would want it to just stay where you last left it =P.