It’s a dracaena marginata bicolor. Knotches in leaves could be from vine weevil adults which can often be seen in containerised plants. Knock it out of the pot and see if you can see any of the larvae. I’ll post a link.
When they get too tall I just cut the tops off and poke the sticks in the pot, it then sprouts one or two shoots from the top again. All the sticks you see in the photo are when I have done that in previous years and all have taken.