I'd +1 that 100% there are plenty of useful, small and quite simple but great sounding pre-amp, EQ, drive/distortion circuits that are well worth doing. If they work first time then you have something good, and if there are a few isssues, well at they're at least relatively simple to sort out, then onwards and upwards
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A few successful simple builds does wonders for confidence, and a few simple issues resolved does wonders for your confidence that you can resolve issues
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Crawl, walk, run, run into brick walls
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ask for help, learn, keep going