Wise and prudent investment advice need not be complex. In fact, it often can be nicely summarized in a short quote. Here is a Link to 100 such quotes:https://www.forbes.com/sites/robertberger/2014/04/30/top-100-money-quotes-of-all-time/#3ca75de64998
I hope you enjoyed them and may even profit some. But 100 is a ton of advice. I particularly liked number 41. I realize your time is valuable and you are not likely to visit my recommendation, so I'll repeat good old number 41 now:
"Investing should be more like watching paint dry or watching grass grow. If you want excitement, take $800 and go to Las Vegas. --Paul Samuelson
Samuelon had it roughly right except nowadays you'll need more than the quoted dollars. Regardless, have some fun and learn too.
Added Thought: There are rules everywhere. Consider the 12 rules recommended for drinking:https://www.cruisecritic.com/articles.cfm?ID=3115&et_cid=3111724&et_rid=16688843&et_referrer=NULL
They do make good sense. Good luck on keeping to them. The temptations are a challenge.