Altcoin investment is too risky especially when the market is in a deep bearish. Some may look very tempting because of their cheap value but the question is if they can survive if the market remains to be in a long term bearish. I believe those who don't have real utility cases won't sustain their value and eventually get lost in the market. So do not take the risk investing in altcoins particularly if you are still a newbie. Instead, stick on bitcoin and invest for long term because its the safest investment that would make you profitable as long as you sell it at a high and reasonable value.
In some cases, altcoins can really grow very well, but not all altcoins can do this, and that is why the risk of losing money with altcoins is much higher. Bitcoin is a reliable investment (as far as it can be), in the world of cryptocurrencies today it is perhaps the most reliable investment. It is possible that something will change in the future, but so far there are no prerequisites for this.