How should I end my personal statement?

I would say you should end your personal statement with a short summary underlining or emphasising your motivations to follow that course, adding why you would be a good fit. Your aim is to stand out from all the other hundreds of personal statements, and for that, you need to really strengthen your main advantages and underline how you are motivated for the course. Really focus on your characteristics and try to think on how you could employ them in the future, but do not overwhelm yourself or exaggerate, otherwise it is just not credible. In a simple way, try to talk about your best characteristics and qualities, as well as your experiences, in a short couple of sentences, for the reader to stick with those final ideas in their mind.