1) Yes you should lighten your load. If your packing list is online, I could look at it for you and point out things to get rid of. The first things to start with are electronics and all the supporting stuff (chargers, cords), then heavy clothes, redundant clothes, then things you brought "just in case" that you haven't used yet, and things you "might need" later. Every little bit counts, so don't keep something just because it's light.
2) There is a fine line between "kindness of strangers" and "mooching" - and it's really easy to hint to people that you are talking to that you need help. A little of this might be OK if you really need help, but (as others have pounded you over on that other thread) - it's not cool to ask others to fund/support/feed your vacation.
3) It's "through" not "threw" - "I threw a ball yesterday" "I am riding through a tunnel"