Help! Beginner Enclosure Problems

[Dito]

You followed the exact same tutorial I did, but you missed one important step: where he tells you how big a piece of perf board to use. [emoji3]

Desoldering parts after following this tutorial is difficult, because you're taught to twist multiple leads together and solder them as a group. Desoldering AND un-twisting is a bitch. [emoji3]

[Sonicxyouth]

I've gotten it to work finally!! I worked on it for days straight and started getting sloppy at the end with my solder joints. So when I plugged it in to test it out, it did work...but only sometimes. Frustrated, I didn't look at it for months until the other day when I opened it up and realized all my mistakes. The cathode (is ground or negative the proper term?) was grounding on something so I used some electrical tape to tape it up. A bigger problem was my solder joints on my in and output jacks were absolutely terrible. Fixing those, the pedal now runs smoothly. Finally, first build complete!!
I have a few questions at the end of my build. First off, I had major grounding problems where components were grounding on things I didn't want them to. Anything you guys do to keep your circuits away from the enclosure? I wrapped everything in electrical tape but I have no doubt there is a better way...
Any suggestions on my next pursuit? Where should I go from here?
Thank you guys so much for helping me out, obviously it was needed!

[duck_arse]

some people use electrical tape. some use cardboard. some use platic from cd cases et.al. standoff and spacers are common, and there is a million ways to implement them, all are canvassed in a few recent threads somewhere hereabouts. search "how do I mount my pcb". that will complain and only return on "mount", but you get the idea.

[Elijah-Baley]

I use the sponge included with IC or socket IC that Tayda send me.

[Dito]

I've used the double-sided foam tape. Doubled-up, even. One piece stuck down where the board is going to fit inside the enclosure; another piece on the back of the board. Press the two firmly together.

On the off chance your 9V battery rattles, another slice of the same tape will tack it neatly in place.