Micro Niche sites Easy to Rank? How long?

Right now I'm working on three different micro niche sites. I've only been working on each site for about 1 & 1/2 weeks. Right now I'm not ranking 1st page on any of my niches, only for the longtail words not my main keyword.

I know there is a lot of experienced members on this forum, I'm really just looking to know how long can I expect till I can hit first page with consistent backlinks.

I purchased a 10k verified backlinks package off this forum, and I've been using nohandseo. My onpageseo is near perfect and each site has 4 quality keyword optimized articles. Pretty much all my long tail keywords are ranking 1st page already, some are already #1.

I'm just looking to get some info off someone who has the experience. I'm pretty sure all that's holding me back from the frontpage is the age of my domain.

One of my competitions site is rank #11 and my site is far better optimized than his, and I have more links. So idk what's holding me back.

Anyhow I appreciate any insight thrown my way.

A few months I would say, just keep building links to your site.