I find it difficult to link my javascript to my html

It should be as simple as linking to it. If that doesn't work, then your link to the javascript is incorrect. <script src="myscripts.js"></script>

If you have more info on your file structure (where the html you're writing and js you're linking to are located) it might be easier to help. For example if you're working in index.html in the diagram below, the link would be <script src="js/myscripts.js"></script>

yoursite/
├── css/
│   └── styles.css
├── js/
│   └── myscripts.js
└─ index.html