Is CTR that important? SERP Questions (ADVICES for a case study)

[Gab-SEO]

My website is gabseo.ca

Lately I have been following keywords my town in Canada from Mexico and I have the impression that the Google updates the SERP almost every hours for my target keyword.

It is possible that the CTR on the SERP can be that powerful? Sometimes I am number 1 for "SEO Gatineau" for example and overnight I am #9 or #10, the next day I am #3... Is there another way that I can test the search result? Whn you try this query, what do you see?

It started happening this week and coincidentally I didn't publish any blog articles this week... is it related?

I am stressing out right now because my agency is a startup. So how can I beat the other agencies if I don't have a good CTR? I know that I will do a casestudy about this!

Any comments, ideas?

[GastonRiera]

Hi Gab,

Right now im trying to analyze your site with Screaming frog, pagespeed insights and GTmetrix... Im getting error 503. It looks like you have serious issues with your server. 
Also, you have alive the HTTPs version and its not implemented correctly.

Regaring ranking positions, those fluctiations.. how are you measuring them? How long is it since your site is ranking in that positions?
What about your competitors, how optimized are they sites? Do you have a better backlink profile?
Personaly i think that CTR should not be your main issue, and yes, it does matter in rankings. If you have a higher CTR than a site ranked higher than you its probable that you will eventually rank higher.

Hope it helps.
Best luck.
GR.

[Gab-SEO]

Oh yes it does! Thanks for the ideas!!