I have been waiting for Bitcoin to reach $3000 so that I can sell my Bitcoins, but seems as if it doesn't want to reach that value anytime soon. SHould I sell with the current amount?

Dont sell it.Just hold.We all too expected bitcoin to cross $3000 by this time.But when segwit will be activated on August 1st,it would definitely trigger the bitcoin price and bitcoin would cross $3000.So just wait a little more.
Sure and believe that bitcoin will soon pass that price. If you're sure that you have a lot of bitcoin for now, I also suggest to hold it, because I'm so sure, bitcoin prices will go up high again. This always happens every year end.
Yep, bitcoin price will go up again. before the year end we might be even above $4000, if everything goes smoothly on august 1 2017. it's an important day/date.