Swimming lengths in the pool can become tedious without some stimulation. Buy yourself a new waterproof MP3 player so you can listen to audiobooks or your favourite music. This will help to keep you going when you are lacking enthusiasm.
You could even learn Swedish by listening to podcasts. It's a good idea to make several playlists. That way you will have a different one for each time you go to the gym and for different styles of workout. If you are going for your personal best you want an invigorating, energising sequence. This will make you really go for it and do your utmost. You don't want to go home disappointed so it's important to invest just a few minutes getting your tune choice up to scratch.
When your not educating yourself or listening to thrash metal in the pool it's a good idea to wear swimming ear plugs. They will keep water out of your ears and prevent infection. Choosing a pair joined on a lanyard would be ideal because this way you won't lose them if one falls out. ZenPlugs make excellent ear plugs which are individually fitted and molded to each ofyour ears from a kit. This makes them super comfortable and effective if you want to keep water in addition to germs away from your ears.