Yeah, your coins are yours and yours. You can sell or keep holding your coin based on your financial needs. If you are in need of money and you have no more savings then the decision to sell coins is the right decision. But if you are not too pressured by financial needs then you can temporarily hold your coin and wait until the coin price in the market improves. When the market price has improved (at least equivalent to the ICO price) then you can sell your coin. If this last thing is your decision then I am sure that you can achieve the benefits that you expect.