Coming into crypto trading with this kind of nervousness and pressure will only lead to huge loss, because ypu will be likely to make huge losses s you wont be settled to make proper and right decisions. Crypto trading needs you to trade with absolute peace pf mind make proper decisions at the right time, know when to enter a trade and when to exit. All this you cant do if you are in a haste to double your capital. I will advice to trade without pressures thats when you can maximise profit effectively
not only trading but no work can be done while having pressure and fear, and talking about the trading i think trading with extreme nervousness will lead him to loss, even the money which he has now will be no more after trading in such situation. but if he trade with calm and cool mind, and work with complete dedication then trust me he could double his capital in trading.