Need SEO UK for 7 keywords shopify site on and off page

Hi we need global ranking for website, it needs to be for at least 7 keywords for a few pages, need to rank 1st, we are currently low ranked.

I need off and on page seo, whitehat, no spam.

PS5 HDMI repair - https://ogrepairs.com/products/playstation-5-ps5-hdmi-port-repair-service
Ps4 hdmi repair - https://ogrepairs.com/products/playstation-4-ps4-hdmi-port-repair-service
Xbox one HDMI repair - https://ogrepairs.com/collections/xbox-console-repairs
Xbox series s HDMI repair - https://ogrepairs.com/products/xbox-series-s-hdmi-port-repair-service
Ps5 controller repair - https://ogrepairs.com/collections/playstation-5-controller
Xbox controller repair - https://ogrepairs.com/collections/xbox-controller-repairs
Ps5 stick Drift repair - https://ogrepairs.com/products/playstation-5-controller-repairs-drift-stick

We need high da back linking, and Max budget is $55 a month.

I need you to be confident that we will get an improvement on a monthly basis, I don't want to hear about not guaranteeing, if you're skilled enough and can be sure we will improve ranking monthly, then put this following text in start of your bid: "I will improve your rankings monthly"