Help me build my PC

I always have this dream of building a pc. I always watch youtube reviews and I am so amazed on how they build those system. My goal if possible is to do reviews like what I watched online and do some streaming in the future. Since we are in a digital world already. However as startup it would be expensive for me to have one. Its always nice to have a helping hand and do the same, I would also make sure to pay it forward to someone who is/are in need. Thanks!