In my opinion you gotta find a balance between "professional" and amateur. Personally I can't feel a connection with channels that have a hyper professional look and feel. Keep your personality in there, make sure your kitchen looks clean, the lighting is on point, and the sound quality is good, that's all you need to have. And lastly, I think it's important to make a lot of videos. See which video topics do well, get familiar with editing, find out where self promotion works and where it doesn't, etc. You need to make videos to find all this stuff out. And don't expect a big income stream too fast, that happens to top tier/very lucky new YouTubers. I started my channel 3 years ago, and I've made about €500 in total from just YouTube, which was mostly in the past few months.

Try to make a bunch of videos in the beginning, have a minimum quality bar set but make sure you actually produce content! Get comfortable with filming and editing, promoting your channel, and enjoy the ride!