I'd be glad to help. First, welcome to Tom's Hardware.
1) What is your budget for building a computer? (<$1000 is a "budget build", $1001-$1500 is a standard budget, and $1501+ is a super powerful PC)
2) If you've gotten the chance to look yet, do you prefer Intel or AMD processors, and Nvidia or AMD graphics cards?
3) What will you use the PC for the most?
4) Do you need a monitor, and if you do, how big would you like it to be?
5) How big/flashy do you want the case to be?
Finally, watch all 3 of these videos. They are long, but totally worth it.
https://www.youtube.com/watch?v=lPIXAtNGGCw
https://www.youtube.com/watch?v=d_56kyib-Ls
https://www.youtube.com/watch?v=RxaVBsXEiok