It doesn't make any grammatical sense to say 'Thanks to yourself', but there are some native speakers who say this. Some people imagine that 'yourself' is a slightly more respectful version of 'you' when it occurs at the end of a sentence, so they use this in situations where they want to appear polite. You occasionally hear company employees addressing customers this way, even though this isn't correct, strictly speaking.
Should you use this form? No. 'Thanks to you' is fine as it is. There is no need to alter this phrase.