There is no way to exactly and always know what stock will be up tomorrow, in a week or in a few hours but here are some tips to help you on your way to trading. 1. If the price of a stock is rising, buy some the chance it will keep climbing is really high. Once it starts going down again instantly sell all your stocks to maximize the profit you can get from them. 2. If a line is going down don't buy those stocks, the chance that they will go up far beyond their earlier value is very low. 3. If you are too late for tip 1 then you should probably wait until the price of the stock goes above what you bought it for to still get some profit off of it. 4. If you are 100% sure step 3 is going to take more than a year you should probably sell them at a high point, you might get some loss but it is better than losing nearly everything. I hope this helped. I wish you the best of luck on your trading journey.