ive been having trouble for a long time ive tried youtube and friends and I don't know what to do if somebody can help me id very much appreciate it   

First, explain how you tried to do it, and which enb also.

The most helpful tip I can give is make sure you match up ENB with the required version.

http://enbdev.com/download_mod_falloutnv.htm



EDIT:
The bottom left with all the numbers are the files you are looking for.

pic:

Then I clicked on the top one

Then the little thing i highlighted at the bottom is where you download it

Spoiler:

thank you leo hold up im going to check it out

Okay so what to I lookfor on there do I down load the mod installer ?

Sorry for late reply. So basically when you pick what ENB you want to use, read it over for any special crap but normally it will say use with XXXX version (which you will get from the first link i gave you)

https://www.youtube.com/watch?v=73r4wNeAV3Q

Watch this video. He has a cool acent but it is quick and to the point.

What ENB are you trying to install?