I’d suggest giving this article on Banishing Your Lust for Result a read.
Getting those first few results can be a little tricky, as magick often works best when you expect the results to come, when you don’t particularly mind how or when they will come, and if you are even fine with the magick not working as you initially wanted it to.
This can certainly be a challenging mindset to cultivate in the beginning. Even now I’ll sometimes catch myself lusting for certain results, while others I can allow to unfold quite easily, so it’s perfectly normal for this to be tripping you up a bit.
What I would recommend is that you not continue with the paper burning that you’ve been doing. This approach can sometimes be effective, where you do a ritual every day until you get results, but in my opinion it is more likely to make you question how effective the magick is, which seems to be the biggest issue here.
Try to distract yourself with other things such as your work, friends, or a hobby, anything to get this other person out of your mind. You could start doing other kinds of magick too, if you’d like, and re-focus yourself toward other goals.
If this is not effective, then the issue would likely be that you still carry much anger and hatred within you that was not cleansed by the working. I assume this person is not a magick-user of some variety, so protection shouldn’t be a problem (assuming that they do not have friends who secretly use magick and have put protection in-place for them).
If a week or so passes and you still cannot take your mind off this person, then, and only then, would I advise one more repetition of the working, beginning on a Saturday as is suggested. If you do repeat the working, you will need to bring forth the full force of your hatred and allow its black poison to be taken by the demons. The destruction they bring will be commensurate with the rage and hate that you give to them.
When you leave the ritual and the demon departs, you should no longer feel the flames of anger that had just consumed you. Instead, it should feel like the end of a good workout. You may be exhausted, but you will also feel satisfied and strong. After twelve days of this, and for the third time no less, your state should no longer be one of lack and weakness, but power and control.
Dwell in this power, and your enemy will crumble before your might.