I will like to know the difference between shot term and long term trading and the one that is much profitable. Also the different risk involved in both.
They are both. Short term trading is profitable if you understand how it works and you're able to trade. If not, you will just be losing your money and nothing else. If you want to start trading you will have to learn technical analysis or maybe find a very reliable source that will do that for you (for your information, most of them that do this are fake).
Long term trading, do you mean HODL? HODL is more easy than day trading, because there isn't much work that you will have to do except that you will be trying to follow up with news and technical analysis but not as much as you would with day trading. You just have to target the right time to invest your money and then wait for the price to increase, and when it does increase, you can then withdraw your profit.
Do long term and day trading at the same time, that will be the most beneficial type of trading, Doing both.
I guess most people here are doing both like myself too. Yes, I am also doing both long term holding and short term trading. But, the big differences in how much risk you will be taking for each kind. I do long term holding for 95% of my capital whereas for short term trading (still I am not into day trading) I risk only 5% of my capital.