Have you acquired any PCB software yet? If so, please tell us what you have.
mentioned, there is free PCB design software available. Avoid PCB houses that offer you their "free" schematic capture and layout software because the files their software creates are not portable Gerber files but are proprietary to the board vendor. Nothing wrong with that if you don't mind getting "locked in" to that one vendor, but it is mainly suited to hobbyists doing one-offs, rather than production work where you need to maintain control and portability of the files used for production.
Years ago, in the 1970s, I did PCB layouts on Vellum using crepe tape and Bishop Graphics "puppets". CAD was just getting started for this type of work and very expensive. About 20 years later, I accepted a contract to build a multiplexed push-button switch interface to an IBM PC-AT clone. I bread-boarded the design with wire-wrap sockets, but was also able to convince my customer that a dedicated PCB would be better in the long run. So I purchased a one-year license to use PADS PCB schematic capture and layout software, passing the cost on to the customer. I found the learning curve fairly steep but manageable. About two months after installing PADS I had created a decent board layout. I allowed the license to expire without purchasing continuing "maintenance" and a few years later PADS was absorbed by another software giant and basically became un-affordable to me.
I would suggest that you not walk down a similar path. PCB design has become quite complicated and you need a PCB software design package that can keep up, but you probably don't need the latest and greatest thing available. Try demo versions of commercial software first before taking the plunge. I would suggest starting with something like Eagle