Most jurisdictions tax every profitable trade without allowing for the deduction of any losses from the profits. This is completely insane. If you engage in a lot of trading, you might end up ruining your life.
This student earning the minimum wage in California turned $5000 into $880,000 before the market crashed early this year. He traded between different cryptocurrencies. Now he owes $400,000 to the IRS which is very far above the current value of his portfolio which is about $120,000.
Don't get personal with a coin you "like". Set your target and your aim should be to close the position as soon as possible. 100 small gains is better than 1 major gains. Just keep skimming off the top and building your btc.