I see a lot of people talking about when to sell; but I think that buying is as important if not more (obviously you but low -_-). so do you guys aim to buy the lowest low of the day/week/month/... and do you think that is riskier and/or hard to predict. do you wait for price reversals? do you follow expert advice?? please share your thoughts and your stories (successful or otherwise 
)
Depends on the situation, a 7-14 day lowest would be a good time to buy but try to check if its already over sold, check the reason why the price is dropping. if you plan to buy today because its the red days and price continue to drop, I suggest to wait for a little longer as hard fork is around the corner and price will continue to drop.)