Which do you prefer?

Hello Everyone, want to ask few questions here.
Short term or Long term investment?
Which is more profitable to you?
What coins do think that is good for long term now?
Feel free to comment your ideas and opinions.
At the present time, long-term investments or short-term investments bring you profits. I think the market is in the early stages of uptrend, the trend is being formed clearly. So, choose bitcoin as the first investment then select altcoin