You can choose to invest in altcoins, because usually with altcoins you can use short-term investment methods that will provide profits in a faster period of time compared to bitcoin which is usually used for long-term investments. Moreover, beginners will still find it difficult to control their emotions when dealing with the market, especially if holding coins takes a long time so that it takes a lot of time which can also eat up their emotions.
Yes of course it's better to choose to invest in altcoins first, I agree with this opinion, because altcoins are good for people who invest in short periods of time very different from bitcoin, now most people also prefer to invest in altcoins, but I personally still prefer bitcoin coins even though I know this takes a long time.
if I were in your position and have 2 BNB, maybe I prefer not to use it and keep it in BNB, because we see the current market BNB coin has a fairly good market trend, and maybe day to day BNB will continue to increase although sometimes it takes a little longer.