I find that many people have a habit of holding ETH, BTC, altcoin for a long time and always hoping that it will rise again. If you are a trader, you will lose money for that. Set small target and sell them when you see profits. I only need 3-5% profit when trading.
If you see the market going down, stop loss before it's too late. You may lose 5-10% of the capital but when the market goes down you can buy more btc, eth when you hold btc, eth, altcoin.
Sell all ETH, BTC into Stable Coin when the market goes down
Wait until the market goes up...?
How do you know, with short term trades, how much higher it will go or how much longer?
The problem with short term trading (or swing trades) is that you go in and out of the markets, because in fact you don't believe that the specific crypto you are trading will be relevant for the long run. If you really believe in the bitcoin/blockchain story, you don't buy and sell immediately.
That's not investing, that's gambling. And if you're so much into gambling, check out Faireum.io
You'll make a heck of a lot more with transparent gambling and fair odds, compared to going in and out of the markets.
PS This is not financial advise

Yes I am sure about it and it will increase very high I think we will have to buy now for trading because price is really good but still after this bull start I only suggest you people to trade for long term as day trading needs allot of knowledge and some basic skills at the same time for current situation it is only good to keep holding one day it will recover again.