This is the time to buy. $BTC is low, so are many altcoins, but I suggest you do it as follows:

Use capital that is set to gain but that you may lose.

Then divide that capital into 3 parts.

Make your investment with the first part and wait for the movement of your coins.

If $BTC goes up hold firm until it starts going down again.

If $BTC goes down, expect your coins to go down until you start to see a small rise in price. There the 2nd part reverses.

And the process is repeated thinking that if it goes down even more the 3rd part is reversed.

Then we must sit still, set a goal (not so high) and wait for profits on the next rise. This can be minutes, hours, days, weeks or months.

And when you reach your goal, decide to withdraw profits and if you want to invest again, do so by following these tips.

They are just advice or suggestions. Do your own research and remember that you can win or lose.

I wish you success