As you are you have to be careful. And invest wisely. Since you have 2 BNB you can invest on few coins. Then you won't lose. Because investing on one coin is a loss. It is more likely to happen. I hope you understand.
There is no loss if you invest in one coin as long as you invest in a good coin that has strong fundamentals. But investing in a single coin is usually a little slow to get big profits because the price increase is sometimes not very significant. Therefore, you have to do your own research on the coins you want to invest in.
Well, no one guaranteed our profits even if we invest in a good coin that has a strong fundamental but at least we will know that project will have some good development as long as the project owner commits to developing the project along with its roadmap.