I sold some at 10,900 hoping it will fall again to rebuy in the 9000's as I purchased some around 10,300... Do you guys think another temporary slump will happen soon? Or cut my losses and rebuy now at over 11k?
It seems to me that you invested what you cannot afford to loose and that is why you sell out of panic. Most panic sellers invested the amount of they cannot afford to loose and at the end they end up loosing because they already have such perception of loosing. So, it is better to invest what you can part with or you end up loosing more of your money.
Expecting bitcoin to fall is a sign that you have not in bitcoin. If you make an investment just give yourself a profit target and if the market value of bitcoin reach that point just sell and don't be greedy and face the other side of the market trend.