new business website doing good on google

I created a website for my bouncy castle buinsess about a year ago, im nowon page one of google and have been for about 8 months, what I don't understand is how come im on page one so quickly? and im wanting to push myself up further on page one, would this be a simple case of letting my website mature and for google to keep crawling it it with a few years behind it I could be up there in the top 3 hopefully.

I have used all these website scores etc and page speed and I see my site not doing to badly with other site so don't understand why im 3rd from the bottom on page one of google? any information would be great.

my business ijumping jacks castles and I do bouncy castles and djing, childrens parties etc

Get others to search for you, using generic terms that relate, the same as a customer might.

Often Google places sites you have searched before higher in your results than it would for someone else.

I've just searched for bouncy castle hire manchester, and you are indeed on my first page, near the bottom, maybe get yourself on Google Places, as this will list you higher.

Whats it designed in and whats the coding?

Mine is pure HTML and google loves it where as my other one is Wordpress and it does nothing.