No time you sell your Bitcoin is waste because keeping the coin will be more preferable than selling at this point, even purchasing alternative coins is another tangible plan which can equally lead you into profit if really you purchase the one that within interval of three month's it can come up to the market, but as a beginner I think the Best option is to transact with Bitcoin, which is buying Bitcoin and hold for future purpose, looking at Bitcoin from another perspective its quite understood that Bitcoin don't have a fixed price, which the coin  purchase today  with $100,  within some months the value of the coin will no longer be affordable with such amount, so coins is good to buy and hold.