Thanks community for yours times and suggestions. I will consider that responses. I will manage my investment about 70 % be BTC and 30 alts.
Excellent choice. I would say not only for a beginner, but also in principle. A lot has changed since I learned about the crypt, but nevertheless Bitcoin has never failed. The main thing is not to leave the crypt at all and calculate the risks. Use a hardware wallet instead of keeping everything on centralized exchanges. There are custom wallets for different altos like Atomic wallet or Exodus. In any case, good luck to you.