This is one of the major problems of people who are new in trading, they don't know how to take profits or secure some.
Even securing just some of your profits or the amount of your initial entry, they can't do it because they can't control their emotion. Another thing having no plan or not sticking to it because for sure there are a lot of traders out there that entering on a trade without a plan like the stop-loss or take profit area.

Well, for OP. Congrats! Keep it up!