It’s already nice that you’re willing to test things out at your own pace and see what works.
You won’t get tired out easily that way if some things don’t work out as you thought they would or within the timeframe you expected
I’m no expert but here’s some simple advice you shouldn’t ignore as it’s crucial for your long term efforts
- Understand the keywords related to the niche you’re going into so you can see what people are actually searching for.
- On-page SEO is another cheap and easy step that most people ignore. Try to optimize your site titles, URLs, headers, meta tags, and all that.
- Make sure your site speed is good... You can use plugins for that if you're running on WP
- Well, don’t ignore link building but at the beginning just focus on free links like directories, Web 2.0, and similar sources.
- Use free tools like Google Search Console and Google Analytics... they will be very helpful.
Lastly, SEO is a long-term game or no game at all : D
Don’t get too worked up. Remember, you’re trying things out to see what works, so give it some time