I follow instructions and installed macOS Mojave on my MacBook Air. The update installed and when I try to use the new software, to my surprise, every 2 minutes the screen was frozen.
I am using Mac since I was 18 years old and I am 50 now. I know macOS and the use of software very well.
I have created a USB macOS Mojave installer and tried clean install. To my surprise it got me nowhere. I tried recovery from Internet with no luck. I partition the hard drive to journal but with no luck again.