Thoughts on my Micro Niche Site

Good day, I haven't been doing Niche Site for a while now because I shifted my focus on my adult sites and now that my adult sites are doing great, want to get back in creating niche site again. So I have this micro niche site for a while now. Around 5 - 6 years now. Haven't done any off page SEO on the site just on page SEO. Site has only 3 articles targeting 3 keywords and is monetized via adsense. The site is number 1 on bing and yahoo and bouncing on google almost daily (40 - 80, sometimes nothing at all). The site is averaging around $80+ per month via adsense, highest all time earning so far is around $200+ in a month. Now I have 3 niche projects that will be starting this month (1 CPA, 1 Adsense, 1 Amazon). My question is should I update this site? Create new articles, do off page seo and stuff? Or I should just focus on my 3 new projects instead? I haven't touch it before coz I don't have time and kinda afraid if I touch it, it might not have good results instead and I just lose the passive income it's giving me.

Would appreciate your opinion on this. Thank you

I suggest to update your earlier websites, hopefully you will get good results. Instead for starting again from 0, its good to re-start from above 0. But keep in mind these are just suggestions not an advice.

Are there any products you could promote as part of your niche? If so, it could be good to do some reviews/comparisons with amazon affiliate links. If not, I guess keep doing what you're doing with adsense but maybe add some more pages to target new keywords and maybe bring in some extra dough. The amazon thing is quite cool though because if they click your link then but something completely unrelated within 24 hours you still get the money for it.

Personally I think CPA is garbage and contributes nothing of value, but go for it if you want.

Yes, add more posts to your existing domain, and try improving its ranking on Google. You could simultaneously start another site as well however weigh that against your resources.

I'd suggest you to give it a try if you got more niche's you have more money