Lost $100 today because of malware (Begginer warning post)

So, to make a quickstory: I decided to move $100 to NEXO with the purpose of earning passive income. $100 is not a lot of money, but for me it is very difficult to have that amount of money to spare in crypto. So, when I copied and pasted the Wallet Direccion, I did not realized that the wallet changed the moment I copied and when I realized that, it was too late. I tried copying and pasting on Word and so, and it kept changing the adress. I did my research and found out that some malware was causing this. I ran an antivirus (I didn´´'t had one beacuse I was being lazy) and after the clean-up, the copypaste problem was solved. I know this is a very begginer mistake, but in case you are as new as me and you haven´´'t installed an antivirus, pls get one and remember to always double-check the adress. For the time being I'm going to be sad sitting here watching Bitcoin pump :(