Problem i bought 2 weeks ago $2000 bitcoin and now it goes down
and I lose money when it gets back and i recover?
That is why crypto currency investment is a speculative market
Except you are buying bitcoin for the longest term (10 years); you need to always do your research and cash out your profits before any support levels breaks
Then you buy back the dip;
It seems to me that you brought Bitcoins looking for instant gains, and you failed to account for volatility in bitcoin prices. If you will sell your coins in the current market yes youll incur a loss, but if you will simply hodl onto your coins not only will you recover your capital but will gain handsome returns too in the long run. No one can predict when bitcoin prices will go high again, hence you need to be patient and simply hold them.