I etch the enclosures for almost all of my pedals, and I design the PCB layouts for every build I do. I do all the design work before I begin building anything. I really enjoy those parts.
For a beginner, I would recommend that you take it in steps. Build the PCB
without the bypass switch. Use alligator clips to connect it to your instrument and your amp. Debug your circuit
before you even think about putting it in an enclosure or hooking up a bypass switch. Make sure it works. Switching and off-board wiring errors are easy to make, very common, and incredibly frustrating for a beginner builder.
Beyond that, when stuffing a PCB, do it by height. Holding the board in your hand, put in all your resistors and diodes. Put a piece of cardboard over the components, flip the board, set it down, and solder. Clip the leads, and flip it back over. Then, move on to the next component by height-- usually sockets. Same thing-- stick 'em in, cardboard over top, flip, solder, clip. Then usually film caps, then electrolytic caps. Works great.
Good luck, take your time, and have fun.

Mike