This site has great boards, an insane production rate for new boards, but does not focus on providing information about the circuits, how they work, and general information about assembling the boards and troubleshooting them when things don't work. Folks pitch in here to help a lot, but it can be heard for someone with very little experience to get meaningful help beyond suggestions like "go back and reflow the solder on your connections" (granted, that advice is given often because it has helped a lot of people). I suggest looking at a couple of other pedal building sites like madbeanpedals.com and guitarpcb.com Look at the forums and go through the topics for getting started. You can get some ideas for a good set of starter projects by looking at the list of projects and see if they have any kind of difficulty rating on them (like "noob" for starters).
The best starter projects will have fewer parts and a more simple circuit design that will start giving you an idea of the basic building blocks and be something you can really enjoy using after you get it working.