~snip~
This is very easy to say, but you should be careful and download only the original wallet, if possible verify the file before installation, and be sure that the device on which the wallet will be installed is clean of viruses and malware. Otherwise, the investment may end up having a bitter taste.
Every beginner should learn a lot before investing in BTC, and even that first investment should be relatively modest, because it is much easier to lose $50 than $500 or more. Learning from your own mistakes is the most expensive.