You must be stupid to throw all away money to rank up your website through pay-per-clicks, buying guest posting services, investing in PBNs (which is illegal by the way and you're website might be penalized).
Don't get me wrong, there are people out there who do this for a living as their business. But as a white-hat seo practitioner, the only advice I can tell you is create good content for your website that people will share and talk about, guest post on high quality websites, build nofollow links through blog commenting, and list your website in directories.
That's how you increase google rankings cheap, actually at no cost at all. Just effort.