I love makeup and I always have done!
I’d suggest buying a couple of lipsticks. They don’t have to be expensive, just something to try some different colours and see how they feel.
Try going for different colours, say a bright red, or a deep wine and something more natural (you can put one on top of the other as well, and you’ll find that that changes the colour).
Try different ways of putting them on: straight from the bullet, then maybe patted down with a tissue, or try with some smudged on your finger first and then put onto your lips. Maybe add some lip balm on top and see how that changes things.
Try going slightly outside the outline of your lips, staying well inside, or just going with the natural outline.
See what you like and have a look at the effect all of that has…
Experimenting with MU has to be one of the best things ever!