You’ll get it eventually. Give it time.
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This…100%…
One way to learn the fretboard is to draw four lines on a sheet of paper and label them EADG…
Once you’ve done that-write out the remaining notes on the fretboard (if you’re super lazy like me, only go up to the 12th fret)…
Write it out every morning for a month (as a mental warm up exercise before work was when I did it)…
Eventually it just sorta stuck…
After a while, you will just somehow subconsciously “get it”…
Idk if this is even the best advice, but doing that or putting a diagram of the fretboard near your workstation (or even on your refrigerator) where you can see it every day goes a super long way towards helping you…
Writing it out helped me bc it made me stop and think about sharps and flats and the whole B/C E/F connection…
When I couldn’t fall asleep for a few months I tried to do it in my head at night as I fell asleep…If you wanna really get “good” try going forwards and backwards and naming the sharp/flat note…
I’m still a newbie and I’d can’t always name notes completely off the top of my head, but I usually I can come up with it if I think about it for a second (minus the notes on the E string and some on the A string-The more time I’ve spent there the easier it’s gotten on those two strings)…
Stick with it…Eventually it will make sense…
Best of luck to you whatever method you use…
Thanks! \m/