As the title describes, I'm in need of packing advice. Only been travelling for a little over 3 months now, and I'm still trying to work out what all I need in my backpack.
I know it's a silly thing to ask 3 month's in, but essentially this isn't about me buying new stuff. Rather, it's about me getting rid of the non-essentials.
Essentially, I aim to travel long-term, earning as I go. The main concern is survival. Whether it's in the wilderness (to a minimum degree) or in a city, so I need to pack accordingly. But i want to keep my pack as light as possible with this extent of travelling. Here's what i got with me now; my "bergen" weighs around 25kg i'm guessing:

CLOTHING
2 Pairs of pants
Pair of shorts
2 T-shirts
2 Short sleeved shirts
2 Thermal vests
2 Thermal long johns
Fleece
Jumper
3 Pairs of socks (incl. 1 pair cold weather socks)
4 Pairs of underpants
A Vest
Pair Goretex trousers
Goretex Jacket
1 Scarf
Head warmer
Pair black leather Goretex Boots
Pair sandals
Black leather jacket

TOILETRIES
Shaving Brush
Nail Clippers
Comb
Toothbrush and toothpaste
Insect Repellant

SHELTER
Tarp
Sleeping Bag
Bivouac Sack
4 Tent pegs
2 Extendable Tent poles
20m Rope
Thermal Emergency bivvy
Foam roll matt
3 Bungee Cords

NAVIGATION
2 Compassse (one was given, am still deciding which I prefer)
Garmin Etrex 30 GPS

COOKING
Single person pot set
Stove connector for gas bottles
Flint and steel
Highlander thermal flask
Pack hexi-block
1 Set campers cutlery

EXTRAS
1L Water bottle
Pair of gaiters
Leatherman Sidekick
Pair Oakley Racing Jacket sunglasses
Sun hat
Spare glasses
Passports
Spare Batteries
First Aid
Wallet
Leather Holder for passports and small extras
Journal
My Song Book
Cheap spare cellphone
Petzl LED Head Torch

CONTAINER
Army bergen (adjustable to: 70L; 100L and 120L)
2 Waterproof bag liners: 16L

Changing the bergen at this point in time is not an option. I'm stuck with it for now, so need to make sacrifices else where.

Any suggestions...?