As to whether the self-sabotaging, a desire to be validated and the desire to hurt yourself by provoking others and anger could be part of BPD: yes (it's not really made explicit in the previous answers, albeit implied).

But do you think hurting others might be a reason behind your self-sabotaging behaviour or is your behaviour really based on a desire to hurt others and not some compulsion or borderline delusion (i.e. it just pops into your mind, it's based on sudden strong emotions, starting with (one causing) anxiety, and you act accordingly even though you don't want to).

The need to rationalise very quickly to reduce anxiety resulting in an incorrect assumption (causing anger) and a bad solution. The borderline delusion resulting in the "I'll show them", if that's what it is, doesn't mean you want to hurt others, just that you want to fail, you want to self-sabotage and you want a response, regardless whether others get hurt. Maybe you want to make a point, lower expectations and/or maybe you want abuse.

So, if it's BPD, you hurt yourself because you "want" to hurt yourself and/or you require validation and you can't help yourself.

One might self-sabotage by hurting others, but hurting others by self-sabotaging is not typical of BPD, I'd say.

That you think you want to hurt others might also be a way to hurt yourself. You "want" to see yourself as a worse person than you really are.

BPD is irrational, emotional. Borderline delusional due to surges of anxiety, it's (quickly) going back and forth between great uncertainty and great certainty. It's impulsive and compulsive. It's about you and how your personality developed. It's not about blame.

It's about you, what you do, how things/reactions affect you and what you (seem to) desire. Explain yourself and restrain yourself. Don't assume, just describe.

If it's just about validation, proving a point, just about lowering expectations or (really) deliberate, it's unlikely to be BPD, but you might be mistaken and it's not just about one of these things.