This list is not in any particular order, so bear with the random ordering.
1. I can’t manage to grow a few sites altogether.
2. I wasted my time doing unimportant tasks (that are going to be revised in the future, anyway).
3. I focused too much on trivial and non-essential tasks (setting up newsletter box, choosing plugins, etc).
4. I wasted my MONEY on things that are non-essential (logos, backlink research) while I should spend them on what matters (articles!).
5. Don’t target high competition keywords in the beginning, you’ll lose.
6. I should write money posts to make more money.
7. Books are great, but they’re cheap, so the commission will also be low.
8. Spending time and resources to chase mediocre, spammy and irrelevant backlinks is not worth it.
9. Do SEO like there were no search engines (genuine networking and outreach).
10. Too many options and potential buyers will be confused.
11. Native writer is the way to go.
12. So many plugins and features are unnecessary, minimalism is the way (also less plugins means more speed).
13. I don’t need a premium theme, I just need a great framework with the standard theme (Genesis).
14. Again, games are great, but the commission is too f*cking low.
15. There are low competition untapped keywords out there waiting to be discovered.
16. Most mainstream gurus make it sounds easy by only showing the success and good part, they hide the ugly and dark side of whatever they’re teaching.
17. Opt for forums or Reddit instead where people share their case study and reveal the good and bad part of affiliate marketing and SEO.
18. Just because everybody is doing it, doesn’t mean it’s the best way to go.
19. Finding the niche is absolutely important, I always underestimated this part.
20. Most of the time, I don’t need premium tools, the free ones are just good enough for my needs.
21. A general writer on Fiverr can’t write a 6,000 words on brain training apps.
22. Almost all freelancers says they can provide “high-quality” content, and most of the time, they can’t.
23. Buying social proof service isn’t worth it (shares, comments, pins).
24. Social medias are overrated when it comes to affiliate marketing (they don’t convert well).
25. When someone offer you something, don’t quickly delete their emails (I’ve missed a lot of opportunities).
26. Always be polite, even when you’re the one holding the high cards.
27. Skyscraper technique has become overly saturated and ineffective (don’t follow mainstream techniques, instead, invent your own technique by understanding the basic principles first).
28. Ask stupid questions, get stupid answers.
29. Voting your own submissions on Reddit with different accounts can boost a short-term traffic, but in the end, it doesn’t even matter.
30. Too many affiliate links can hurt both conversions and traffic (don’t be greedy).
31. Buttons are not the way to go (they look spammy), use text links instead.
32. Include FAQs on posts to target more long tail keywords.
33. I don’t need to write with a perfect grammar to be able to rank on Google (most people doesn’t even care about it, as long as it’s not too bad).
UPDATE August, 2018:
34. Never choose a niche that you don’t have an expertise on.
After Google updated its algorithm regarding the E-A-T and YMYL content, some of my best performing posts (supplement related) went down making my Amazon earning decreased significantly.
What is the key takeaway?
Niche like law, finance, health, and expensive hobbies requires certain credible expertise because they can affect someone’s health or financial status significantly.
If you’re blogging about these niches, make sure you’re a real expert on those niches.
35. Just because the study says that the average content on Google first pages is about 1800-2000 words, doesn’t mean longer content is better.
For example, people need to get as many information as they can when they want to buy a laptop, but will generally buy a book just because the title is attractive.
Key takeaway: Expensive items require more words to cover all the information needed, while cheaper items can get away with a relatively medium-length content (about 1000 words or more).
After all, do we need to create a 10,000 words monster post just for “10 Best Toilet Papers (Reviewed & Ranked in 2018)”?