I would say that it would be best to let your bitcoin grow. Especially nowadays, I noticed that there were few people doing bitcoins. Like for example, my colleagues, aside from doing our full time job, they're investing in doing bitcoins and trading. Based on my opinion, people is just now adapting the importance of earning in bitcoin and exploring it just right now, like in what other ways they can earn more. So, since it was just recognized by individual lately, I think it's better to continue joining campaigns and other projects to earn more bitcoin until the right time comes with the right value or price of bitcoin then I can decide whether to keep it or sell it.