I'll probably once again repeat some of what the others said, but let me answer all your questions:
1. Only 60% Work at a team. The other 40% do Lone Wolf all the time. (Kinda ruined it for me) Today i was new so i was following my squad leader, he gets into an ACP and drives off and leaves me in the middle of nowhere .. maybe its an isolated incident, but i seen a lot of people not working as a team.
Can happen sometimes. As the others said, try to find a good squad. Look for squad named "Teamwork" "VOIP" "TW" "INF VOIP" "INF TW" "VOIP TW" and all combinations of those. Join servers with a good reputation if possible. Try to switch the team if you don't find a good squad on your team, or even change the server or wait for a better squad to be opened. Look for a good squad name and, before you join, make sure the squad isn't spread all over the map (click on the squad in the list to see the position of all members).
2. Very hard to communicate. If you dont have a headset... its rather impossible to communicate which is annoying .. They could add some more speech stuff. Also if your on insurgents then when they request medic or something, the text doesn't appear so you have to kinda learn the language the soldiers speak in.
As I said in the other thread, you'd be best off getting a mic. No need to be shy at all. Without, you're VERY handicapped in PR, and you won't be able to enjoy it fully.
3. I dont understand how spotting works... or is it broke? Or is it just meant to be like that? When im looking at an enemy i press 'Q' and click contact and it doesnt spot them on the radar... The only things it spots on the radar is helicopters and planes. (This is very annoying .. i dont understand why this is like this)
As Rhino said, there's no more automatic spotting. Call out the bearing and distance, and describe the surroundings if needed, or give people the coordinates on the map for your target. (For the small grids within the big ones, use the keypad system: Look at the numpad at your keyboard: Like the small grids, it's made of 9 parts. They are named like the keys. The middle of map grid E4 would be E4 keypad 5, or Echo 4 kp 4)
4. Sometimes when your in the middle of nowhere with no transport ... walking is very boring and no one at all on your team will pick you up.. even they drive past you. It gets annoying having to walk.
Don't get in the middle of nowhere. You never should be in the middle of nowhere without your squad near you. This can only happen when you are not in a good squad or your squad got wiped out - if the latter is the case, they'll normally organize evac for you, or ask you to meet them at a given place.
5. This maybe just me cause im a n00b but i never know where someone is firing from and by the time i get some idea i get shot. Very annoying for a new player.
Stay in cover at all times. Listen to what squad members say and, most importantly, tell your squad if you see an enemy. If the squad gets ambushed, find cover instantly. Don't be a hero: If you're under fire and don't know where from, run away.
6. No one ever heals me Dunno why...
Again, get in a good squad. They're not rare. In a good squad, you will always have a medic there to heal you - IF you can TELL him that you need healing. The default "I need a medic, quick!" sound is often ignored, so you would be best off having a microphone here as well. Noone will ignore a "Hey, Spec, I need healing!" - well, except for those not called Spec, but replace that with their name then
7. No one ever does what i thought they would do.. Plan what there gonna do and then do it afterwards.
Again, communication. Ask your squad leader exactly what he needs you to do. If he gives you no orders, perhaps you should join a different squad.
8. No one ever helps n00bs ... they just are like 'Read the manual' which i have done a lot of times.
I'm sorry. Perhaps you're just unlucky with the squad leaders. Many are tired of explaining things, but others will be helpful. I can't say much more than good luck finding better squad leaders - I'm an awful SL myself due to my lack of understanding of strategy, so I can't offer you to help you out here directly. But if we meet on a server some time, perhaps I'll at least be your medic or something

Again; keep your eyes open for squads named "Teamwork" or "VoIP", and get VoIP unless you have a good reason not to. It helps alot and does not hurt.
9. Also i dunno why i had the Pilot Kit and got in a chopper and it said 'You cannot Use this seat' i was confused.
Ya. Pilots can ONLY take the pilot seat, that's to avoid para-drops. I'm sure someone already mentioned that here.
10. Some kits i pick up the game yells at me 'YOUR NOT ALLOWED IT DROP IT'
As probably also already answered: You can not pick up most enemy kits, except for basic rifleman variants. Try not to pick up enemy kits at all, stick to the role you've been given by the squad leader, and stick to your armies kits, because the tracer color could confuse others and lead to friendly fire.