What stocks do you invest in?

Anyone wanna share? I'm pretty new at this and am curious what others are doing.

Trading stocks constantly is a losing proposition. That's because the commissions and fees you pay increases your handicap to earn any money.

At the beginning of my investing for retirement, I made a few mistakes along the way. What I've learned over the years is to select a few index funds provided by either Fidelity or Vanguard; they're both low fee institutions.

I've been withdrawing a minimum of $24k/year (auto withdrawal at $2k/month) from our funds for the past ten years, and our balance is higher than my initial investment.

Rule #1: Don't play the regular trade game. Only greedy people do that, and the majority lose.

Rule #2: Manage your own money. Only have the best interest to invest well for yourself. Others work for commissions and fees.
Rule #3: Diversify.
Rule #4: I don't follow the recommendations of investment pundits who tell us to increase our bond holdings as we get older to "protect" our investment. Rather, keep track of the macro-economics of our country and our trading partners. As long as our economy continues to grow at about 2%/year, we're in good company. I'm now 81 years old.
Rule #5: Many investment guru's have been warning us all year about the stock market losing 50% this year. That's BS of the worst kind, because fear works for many people. Don't listen to them. Do your own reading of finance and our economy.

I would like to hear from the person who gave me a thumb's down to know why my advise is wrong. If there's a more successful way to invest, I want to learn too!

There are many sectors that are trending right now such as Lithium stocks, penny stocks, small-cap healthcare stocks, cannabis stocks, etc so in 2019 these are the best sectors to invest in.

I think there are plenty of stocks to choose from that have done over the long run. However, I'm the lazy type who doesn't want to constantly manage my investments, so I selected Vanguard Index Funds many decades ago. It's done very well, and I'm happy with the results. It was a choice between Vanguard and Fidelity; I picked Vanguard.