While I agree with a couple of your suggestions, I think one is somewhat overstated, and two are flat out wrong.
Here're my thoughts:
1. Maintain a Low Cost of Living: yes, but don't forget to enjoy life in the present while saving and investing for the future.
2. Don’t Take on Debt: sort of. Don't take on high-interest debt if you're not forced to. If the alternative is starving, maybe rethink this. Also, I've taken out several auto loans over time, at 0% interest. That made buying those cars cheaper than buying with cash.
3. Don’t Buy a House: flat out wrong, for most people most of the time, if they can afford a mortgage. Here's why: https://medium.com/financial-strategy/if-youre-renting-your-home-you-need-to-see-this-1dd55f06dfa
4. Buy Dividend-Paying Stocks No Matter What the Market’s Doing: misguided at best. The dividends paid out reduce the value of the company, so your remaining shares are worth less by the amount of dividend you received. Read more here: https://medium.com/financial-strategy/should-you-invest-in-dividend-paying-stocks-ddc5558f4a1f
5. Accelerate Stock Purchases When the Market Drops: generally agreed, assuming you're far enough from retirement to ride out the possible continued drop.