IMO, long-term trading is good for only particular currencies. With BTC, for example, you'll obviously might lose some great orders. Whereas more stable cryptos defintely will not let you down. And experience in trading is also a main factor. Long-term is good for newbies: it would give them enough time to learn the rules.

So far 2 a days is OK. But when the market goes too crazy, I can check the price every spare minute. And it really drives me mad...
As for managing the stress, tlking to non-crypto dudes helps. They don't understand my problems, I don't understand theirs. Perfect!

this definitely requires insane amount of investment and basically should be considered as launching  your own business, no less, to meet the breakeven point. If you have such money to risk and you evaluated your abilities correctly, then why not? Many people (including me) believe that Bitcoin is bound to grow again

tbh I believe that's what is going to shape the economies all around the world and the blockchain technology in general will be used to prevent financial crimes => more transparent finance system!