Should I get Minecraft PC, is it worth the money?

So I got some money for doing well on a test and I've been considering getting Minecraft, since I've seen so many youtubers (BlueXephos, PiinkSimmer) playing and it looks fun. I've seen the graphics, and I like them.
The game on its own (no mods), what is it like?
And with textures and mods how is it better?
Would a 14 year old girl enjoy it?
Also, is the game far better on multiplayer, since I don't have any friends who play Minecraft so will I not enjoy it if play on my own?
Finally does it require a particularly fast computer? Like would it close down or be super laggy if the computer only had just enough space on it? I don't really want to spend £18 on something that's going to be slow and laggy and shuts down a lot. Currently at this time I'm using a Windows 7 laptop, will it overheat the computer?

Why does my void launcher keeps crashing?

I recently downloaded void launcher to get the crazy craft mod pack but every time I click Install crazy craft it installs it but then crashes and says detected minecraft crash. Would you like to reninstall crazy craft mod pack. Please help I'v been trying this for ages now! Btw I'm on a mac!

Added (1). btw this is minecraft

Is there a website where you can download a full minecraft mod with all the files that are needed?

I want to download some minecraft mods with without having to individually download the requirements piece by by piece. Like instead of having to download modloader, shock api, otptfine, minecraft forge, and/or all those other basic mods needed to run every mod, they all come in one jar so its a lot less work.

i may sound lazy but all the work it takes to get mods isn't really worth it to me and i just want to knowif it is in some way easier to do so.

How to install and use more then one mod in Minecraft?

Well, I installed a mod in Minecraft earlier and it works fine. But now I tried to install another mod and when I run Minecraft it crashes and I have no clue why. Any way to fix it? Do II have to delete an extra file some where?

Trouble with java and logging into crazy craft?

I'm trying to download crazy craft a mod for minecraft but when i log in and it starts to download it stops and it says a java exception has occurred and above that it says java virtual machine launcher. What do i do to fix it

Why I can't play these games? - 1

Hi! I have a Fujitsu Siemens: P5600, Athlon 3400+, 1GB, 2.20GHz, DirectX 9.0c (4.09.0000.0904). So I could play TF2, Minecraft as the sys req demands… But when I try to launch them a black screen comes out then imediately closes. So i tried Garry's Mod, the game started to menu where i could change settings and stuff but when I start new game it loads until "initializing game data" than black screen and closes(didn't buy any of these games). In Device Manager the display adaptor says: "fujitsu siemens computers sis761gx onboard graphics", and I tryed to update it but it says that it didn' found better version than i have, and I even tryed to install an nvidia display driver, but failed. Please help me!

Added (1). What to install, Alforita?

Why I can't play these games? - 2

Hi! I have a Fujitsu Siemens: P5600, Athlon 3400+, 1GB, 2.20GHz, DirectX 9.0c (4.09.0000.0904). So I could play TF2, Minecraft as the sys req demands… But when I try to launch them a black screen comes out then imediately closes. So i tried Garry's Mod, the game started to menu where i could change settings and stuff but when I start new game it loads until "initializing game data" than black screen and closes(didn't buy any of these games). In Device Manager the display adaptor says: "fujitsu siemens computers sis761gx onboard graphics", and I tryed to update it but it says that it didn' found better version than i have, and I even tryed to install an nvidia display driver, but failed. Please help me!

Added (1). But how come Garry's Mod got in menu and TF2 not?

Why I can't play these games?

Hi! I have a Fujitsu Siemens: P5600, Athlon 3400+, 1GB, 2.20GHz, DirectX 9.0c (4.09.0000.0904). So I could play TF2, Minecraft as the sys req demands… But when I try to launch them a black screen comes out then imediately closes. So i tried Garry's Mod, the game started to menu where i could change settings and stuff but when I start new game it loads until "initializing game data" than black screen and closes(didn't buy any of these games). In Device Manager the display adaptor says: "fujitsu siemens computers sis761gx onboard graphics", and I tryed to update it but it says that it didn' found better version than i have, and I even tryed to install an nvidia display driver, but failed.