Frustrated to death! Can't get my first Hackintosh to run properly!

Hi.

I'm a new user here. I tried once 2 years ago to install a Hackintosh without success, got back to it this time and at least I got it installed!

But I'm running into a couple of nerve breaking issues. I'm hoping that someone from the community could help me out!

1. I cannot boot from the SSD. Whenever I turn on my PC and just let it run without selecting the boot device with F12, I'm presented with an underscoring blinking "_" that just doesn't go away. It never launches into Mac. If I put in my USB, select the USB from F12 menu and run Macos then it opens (really slow, but that's another problem).

2. I can't get my graphics working! I have a MSI GeForce GTX 650 Ti 2048MB. I can't get it working properly after injecting Nvidia drivers. I also tried to download the alternative drivers but can't find any for my mac version 10.3.6 (17G66). Is there a way to do this?

3. Ethernet. When I first booted up after installation, ethernet was working. Now it doesn't even after I injected from Multibeast some ethernet kexts. I read somewhere that when you first boot up after installation all kexts are applied and thats why it usually works. How can I fix this?

I really need your guys help since I installed Hackintosh for the sole purpose of Xcode and I have an important assignment soon.

I have a Alienware Aurora R1.

Intel Core i7 930 2.81 GHz

Intel x58

8GB 1333MHz DDR3 ram

MSI Geforce GTX650Ti 2048MB

256SSD.

One more thing, on the clover bootloader, I also get boot from hd1 windows, boot from hd2 windows (meanwhile I have no windows installed whatsoever on any drive, I only have the SSD with the hackintosh and another HDD which I keep for files).

Please help me!