"Lemonade was a popular drink and it still is..."- GangStarr.
Challenges are common. The temptation to quit is common. It's not uncommon however, for people to quit because the building blocks of success are not sexy- they usually involve a lot of monotony, repeating the same processes until mastery. Winners know how to take the bitter taste of boredom or disappointment and sweeten it and even sell it as a nice glass of lemonade.
Ask Queen B who actually made an album delineating how she took lemons an made lemonade.
Hope this encourages you.
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