I want to build a gaming PC, can you help?

I found a similar question, but it is 4 years old. From what my two friends who both have built their own computers say that it would be very outdated.

The 3 most important parts from what I have been told for a gaming PC is the CPU,GPU and motherboard.

I’ve look mostly at CPUs and still can’t decide.

My budget right now is no more than $1,000. Least for now if I need to save a bit more and it is worthwhile I will. If you can suggest to me specific parts, brands etc. Links and all that jazz would be extremely helpful as I have true no idea what is best. I do not have the knowledge to know what is a good deal or not.