Well, in that case, I can recommend the 5.4 LTS (Long Term Support) kernel: still updates but less than always being on the latest and greatest Linux kernel… 
Start here:
Yes, if you read this too:
https://archived.forum.manjaro.org/t/how-to-provide-good-information-in-your-posts/37102
Just:
- use plain English
- avoid XY Problems
- always, always, always provide an
inxi --admin --verbosity=7 --filter --no-host --widtheven if you think it’s not needed.
That depends on you: If you’re a tinkerer and like to install all kinds of themes, desktop environments, Bouncing icons, Wobbly windows, … you’re going to have less piece of mind!
And last but not least:
Välkommen till Manjaro!