My friend told me building my own pc is stupid

I told a friend that I’m building a new pc once I’ve saved up enough money. He told me I should go for a prebuilt however, but I don’t really want to since they tend to be so pricy. On the other hand, I’m really scared I’ll mess something up, or break something while building it.

I’ve never built a pc before, and my current was one I bought off Facebook marketplace in 2021 that was also self built

What do you guys think? I know that the answers will probably be biased since I know which subreddit I’m posting on lol. Maybe I just wanted to hear if it really is as difficult as he says?

EDIT: Many thanks again for all the nice and informative comments! I’ll continue reading tomorrow when I wake up :) And also, my friend said he is simply worried for me, since he knows how I can get really upset and blame myself if I make a mistake