I sold all my crypto for ETH, now I could run a node

This is a thrown away account to wipe my identity so I can't be tracked. I won't answer DMs, so scammers just don't.

I am not rich, and I have been in crypto since 2021. I suffered a lot in the crypto winter, but I've also learnt a lot.

I am glad to announce that I finally sold all my crypto for ETH, and now I own a whooping amount of 34 ETH.

My post is not to show off, but to ask about running a node. All I know is that it is between %4 and %10 APR. That it is complicated and you could potentially fuck up. For the latter reason, I am going to do a lot of research and practice before jumping into it. The last thing I want is to lose it all.

1- Where to start from to learn about running a node?

2- Is it a good idea?

3- Should I buy a secondary cheap computer for this purpose? (my main computer is a laptop). I use WIFI.

4- Should I connect it from an ETHERNET cable? Should I run it in Linux?

5- Anything else I should be aware of?