I think that you can buy and sell at any time, the main thing is experience

Yes, it's time to buy, because the market has fallen a little bit, so you can buy a little cheaper coins of interest, because the market is likely to grow soon.
thats right ,, buy now while there is time left to bag all your favorite altcoins. Cause were just a week away before the halving happens, im sure good things will happen by next week.