Back in the day I knew two photographers: #1 shot film, black & white, and his good friend #2 shot colour negative. #2 put his film in at a local processor while #1 developed his own negatives. The big difference between them was when it came to making their own prints – #2 had always accepted the exposure his camera's meter gave him and he had a formulaic printing method of fixed exposure time and unvarying colour filtration. He could turn out twenty 8"x10" colour prints in a few hours while #1 would spend all evening on a couple of B&W prints, varying the contrast, exposure, dodging and burning until he got the image he wanted. #2's were er, acceptable: I can still look at #1's prints with pleasure decades later; they're works of art.
You don't just make prints like that, they're the result of learning and practice. The same goes with processing your own raw files: you can apply presets and get broadly similar results across the board or you can gently, step by step, learn how to turn a raw file into an image you'd be proud of. It's not terrifying, it's fun! And just like making prints from a negative, if you screw up you just go back to the raw file and start again with all the image data your camera captured, unlike working with a jpg file.
I recommend you set your camera to shoot RAW+JPG while you get started so you've got a ready-made image in the can anyway and a reference to what you can do better than
. Finally, there are a hundred and one ways of getting a desired result in an image processing program, so if YouTube megastar says there's only his way or the highway, pass him by!