My chef hero is...not a famous chef but my own dad, who is a very good cook, and also my father-in-law, who is Sicilian and also very good.
Spread out the spaghetti on a tray and dress in a bit of olive oil so it doesn't stick together (don't run it under cold water to cool down - this isn't needed and it washes the flavour away and makes the pasta wet and soggy).
A tip that non-chefs might not know to make them a better cook is...keep on cooking, reading and talking to people involved in food.
I think people think it's all late nights and long days but I've found it to be a really flexible and a lovely way to live.
Try and plan some of your week this way and you won't buy too much food in your shopping, because you know you're getting a couple of takeaways in the week as well!