A few words for you to avoid the mistakes I made in the past:

1. Most of us invest here to earn extra money, so it must be our surplus money (don't borrow, don't mortgage your house or anything)

2. Because it is surplus money, it must be safe. So invest 70% in $BTC and 30% in $ETH .

3. Buy Spot and only Spot. Don't go into Future or Margin.

4. When you have a little profit, withdraw it.

5. There are usually only 1-2 big waves a year, just play that wave. Don't try to catch the whole wave.

The 2nd-3rd thing is what you should remember, keep in mind.

Investing in other Altcoins can bring big profits but can lose 100% of your capital.

Try to preserve your capital, as long as you have money, you still have a chance to correct your mistakes.