So i finally got round to playing skyrim for the first time but i am so confused, there are so many things you can pick up and equip but it only lets you carry a certain amount, how do you decide what to carry? Also the skill tree, there are so many option to choose from? Im so confused can anyone help

Decide what you want your specialty to be, and sell your stuff a lot (the Thieves' Guild helps a lot).

Oblivion is better tho > And there's no selling limit to a merchant

You're 3 years late, sis.
I suggest reading up some tutorials on the web, also the wikis (wikia,UESP) will be your new best friends.

Oh I got this a while ago let me get into et!

1. Sell it at your nearest Gamestop.
2. Buy a 3DS + Pokémon X/Y with the money (you'll have to spend more than you get from selling that dated game).

Carry stuff that you actually want and then stuff that is worth money. You have to kinda compare the worth with the weight of the thing ect.

Drop anything like bowls, plates, random clothes you don't need ect and sell your excess stuff regularly.

Also buy the Whiterun house asap so you can store stuff that you wanna keep but don't want to carry around.

High!

Oh.... Check YouTube videos. They will help you out.